As filed with the Securities and Exchange Commission on June 14, 2002
                                                     Registration No. 333-75834
================================================================================
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                               -----------------

                       Post-Effective Amendment No. 1 to
                                  Form S-3/A

                            REGISTRATION STATEMENT
                                     Under
                          THE SECURITIES ACT OF 1933

                               -----------------

                           APOGENT TECHNOLOGIES INC.
            (Exact name of registrant as specified in its charter)



        Wisconsin                    3843                    22-2849508
     (State or other
      jurisdiction             (Primary Standard               (I.R.S.
   of incorporation or     Industrial Classification   Employer Identification
      organization)              Code Number)                   No.)
                                                


                        AND ITS GUARANTOR SUBSIDIARIES



           Delaware                    Apogent Finance Company               2-0522134
          California                    Applied Biotech, Inc.                33-0447325
           Delaware                Barnstead Thermolyne Corporation          13-3326802
           Wisconsin                 Chase Scientific Glass, Inc.            62-1711339
           Wisconsin                 Innovative Diagnostics, Inc.            74-2951231
           Delaware                    Erie Scientific Company               13-3326819
           Delaware             Erie Scientific Company of Puerto Rico       22-2855227
           Delaware                    Erie UK Holding Company               02-0523659
           Wisconsin               Ever Ready Thermometer Co., Inc.          22-3329530
          California                 Forefront Diagnostics, Inc.             33-0733551
           New York                          Genevac Inc.                    13-3614495
           Delaware                   G&P Labware Holdings Inc.              02-0528748
           Delaware                   Lab-Line Instruments, Inc.             36-2160341
          California                    Lab Vision Corporation               94-3204455
           Delaware                Matrix Technologies Corporation           04-2876817
           Delaware                          Metavac LLC                     02-0530733
           Delaware                    Microgenics Corporation               68-0148167
          California                 Molecular BioProducts, Inc.             95-3244122
           Delaware              Nalge Nunc International Corporation        13-3326816
           Wisconsin                 National Scientific Company             58-2315507
          Connecticut                The Naugatuck Glass Company             06-0465440
           Wisconsin                 NERL Diagnostics Corporation            05-0486109
           Wisconsin                 Owl Separation Systems, Inc.            39-1915146
           Wisconsin                          Remel Inc.                     74-2826694
           Wisconsin               Richard-Allan Scientific Company          38-3235594
          California                Robbins Scientific Corporation           94-2456711
           Delaware                  Samco Scientific Corporation            95-3145731
           Delaware                  Separation Technology, Inc.             93-0968130
           Delaware                          Seradyn Inc.                    02-0530147
           Delaware                    Apogent Transition Corp.              13-3326805
           Delaware                Vacuum Process Technology, Inc.           04-3538751
(State or other jurisdiction of      (Exact name of Guarantor as          (I.R.S. Employer
incorporation or organization)        specified in its Charter)        Identification Number)
                                                                 


                                           MICHAEL K. BRESSON
                                             Executive Vice
                                        President--General Counsel
                                              and Secretary
                                        Apogent Technologies Inc.
                30 Penhallow Street        30 Penhallow Street
             Portsmouth, New Hampshire  Portsmouth, New Hampshire
                       03801                      03801
                  (603) 433-6131             (603) 433-6131
              (Address, including zip
                code, and telephone
              number, including area    (Name, address, including
               code, of registrant's     zip code, and telephone
                principal executive      number, including area
                     offices)           code of agent for service)

                       Cover continued on following page



                      Cover continued from previous page

                               -----------------
 Copies of all communications, including all communications sent to the agent
                              should be sent to:
                               BRUCE C. DAVIDSON
                              JOSEPH D. MASTERSON
                              Quarles & Brady LLP
                           411 East Wisconsin Avenue
                              Milwaukee, WI 53202
                                (414) 277-5000
   Approximate date of commencement of proposed sale to the public:  As soon as
practicable after this Registration Statement becomes effective.
   If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [_]
   If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box. [X]
   If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_] __________
   If this form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_] __________
   If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [_]

================================================================================



PROSPECTUS

                                 $300,000,000

                           Apogent Technologies Inc.

   2.25% Senior Convertible Contingent Debt SecuritiesSM (CODESSM) due 2021,
            and Common Stock Issuable Upon Conversion of the CODES

                               -----------------
   Apogent Technologies Inc. issued $300,000,000 aggregate principal amount of
2.25% Senior Convertible Contingent Debt Securities (CODES) due 2021 in a
private placement in October 2001. Selling holders can use this prospectus to
resell the CODES and the shares of common stock into which they may be
convertible at any time at market prices prevailing at the time of the sale or
at privately negotiated prices. Payment of all principal, interest (including
contingent interest, if any) and additional amounts, if any, payable on the
CODES are unconditionally guaranteed by certain of our subsidiaries.

   The CODES are convertible, at the option of the holder, into shares of our
common stock initially at a conversion rate of 32.7955 shares of common stock
per $1,000 principal amount, which is equivalent to an initial conversion price
of approximately $30.49 per share, subject to adjustments described elsewhere
in this prospectus, in the following circumstances:

   . if the sale price of our common stock is above 120% of the conversion
     price measured over a specified number of trading days;

   . if the ratio of the trading price of the CODES to the conversion value of
     the CODES is below 105% measured over a specified number of trading days;

   . during any period in which the credit ratings assigned to the CODES by
     Moody's Investors Service, Inc., or Moody's, is below "Ba2" or by Standard
     & Poor's Rating Services, or Standard and Poor's, is below "BB+", in which
     the credit rating assigned to the CODES is suspended or withdrawn by
     either rating agency or in which the credit rating assigned to the CODES
     is suspended or withdrawn by either rating agency or in which neither
     agency continues to rate the CODES or provide ratings services or coverage
     to us;

   . if the CODES have been called for redemption; and

   . upon the occurrence of specified corporate transactions.

   The CODES bear interest at a rate of 2.25% per year. We will also pay
contingent interest during any six-month period following a six-month period in
which the average trading price of the CODES is above specified levels.
Interest on the CODES is payable on April 15 and October 15 of each year,
beginning on April 15, 2002. The CODES will mature on October 15, 2021.

   The CODES are subject to special United States federal income tax rules. For
a discussion of the special tax regulations governing contingent payment debt
instruments, see "Certain United States Federal Income Tax Considerations."

   We may redeem some or all of the CODES on or after October 20, 2004.

   You may require us to purchase all or a portion of your CODES on October 20,
2004 and on October 15, 2006, 2011 and 2016, or, subject to specified
exceptions, upon a change of control event.

   Shares of our common stock are quoted on the New York Stock Exchange under
the symbol "AOT." The last reported sale price of the shares on June 7, 2002
was $24.14 per share.

   In connection with our private placement of the CODES in October, 2001, we
and the guarantors agreed to file a shelf registration statement for the resale
of the CODES, the guarantees and the common stock issuable upon conversion of
the CODES. This prospectus is a part of that shelf registration statement.

   The CODES are our senior unsecured obligations, and the guarantees are
senior unsecured obligations of the guarantors. As of March 31, 2002, we had
approximately $624 million of senior debt and the guarantors had approximately
$875 million of indebtedness and other liabilities.

     Investing in the CODES involves risks. Risk Factors begin on page 6.

   Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined that
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

                        Prospectus dated June 14, 2002.

   "Convertible Contingent Debt Securities" and "CODES" are service marks of
Lehman Brothers Inc.



                               TABLE OF CONTENTS



                                                                                Page
                                                                                ----
                                                                             
About this Prospectus..........................................................   i
Forward-Looking Statements.....................................................  ii
Prospectus Summary.............................................................   1
Risk Factors...................................................................   6
Use of Proceeds................................................................  13
Dividend History and Policy....................................................  13
Price Range of Common Stock....................................................  13
Consolidated Ratio of Earnings to Fixed Charges................................  14
Description of the CODES.......................................................  14
Certain United States Federal Income Tax Considerations........................  36
Selling Holders and Plan of Distribution.......................................  43
Legal Matters..................................................................  52
Independent Accountants........................................................  52
Additional Information.........................................................  52
Incorporation of Certain Documents by Reference................................  53
Annex A--Form of Notice of Proposed Transfer Pursuant to Registration Statement A-1
Annex B--Form of Notice of Transfer Pursuant to Registration Statement......... B-1


                             About This Prospectus

   Apogent Technologies Inc. is a Wisconsin corporation. Our principal
executive offices are located at 30 Penhallow Street, Portsmouth, New Hampshire
03801, and our telephone number at that address is (603) 433-6131. Our World
Wide Web site address is http://www.apogent.com. The information in our website
is not part of this prospectus.

   We originally sold the CODES in reliance on an exemption from registration
under the Securities Act of 1933 for offers and sales of securities that do not
involve a public offering.

   No dealer, salesperson or other person has been authorized to give any
information or to make any representations other than those contained or
incorporated by reference in this prospectus in connection with the offer
contained in this prospectus and, if given or made, such information or
representations must not be relied upon as having been authorized by Apogent.
Neither the delivery of this prospectus nor any sale made hereunder shall under
any circumstances create an implication that there has been no change in the
affairs of Apogent since the date hereof. This prospectus does not constitute
an offer to sell or a solicitation of an offer to buy securities other than
those specifically offered hereby or of any securities offered hereby in any
jurisdiction where, or to any person to whom, it is unlawful to make such offer
or solicitation. The information contained in this prospectus speaks only as of
the date of this prospectus unless the information specifically indicates that
another date applies.

   This prospectus has been prepared based on information provided by us and by
other sources that we believe are reliable. This prospectus summarizes certain
documents and other information in a manner we believe to be accurate, but we
refer you to the actual documents for a more complete understanding of what we
discuss in this prospectus. In making a decision to invest in the CODES, you
must rely on your own examination of our company and the terms of the offering
and the CODES, including the merits and risks involved.

   We are not making any representation to you regarding the legality of an
investment in the CODES by you under any legal investment or similar laws or
regulations. You should not consider any information in this prospectus to be
legal, business, tax or other advice. You should consult your own attorney,
business advisor and tax advisor for legal, business and tax advice regarding
an investment in the CODES.

                                      i



   You should contact us with any questions about this offering or if you
require additional information to verify the information contained in this
prospectus.

   Each prospective purchaser of the CODES must comply with all applicable laws
and regulations in force in any jurisdiction in which it purchases, offers or
sells the CODES or possesses or distributes this prospectus and must obtain any
consent, approval or permission required by it for the purchase, offer or sale
by it of the CODES under the laws and regulations in force in any jurisdiction
to which it is subject or in which it makes such purchases, offers or sales. We
shall have no responsibility for your compliance with such laws and regulations.

   The CODES being offered pursuant to this prospectus are now, and likely will
continue to be, represented by one or more global CODES, which have been
deposited with, or on behalf of, The Depository Trust Company and registered in
the name of Cede & Co. Beneficial interests in the global securities
representing the CODES will be shown on, and transfers thereof will be effected
through, records maintained by The Depository Trust Company and its
participants. CODES in certificated form will be issued in exchange for the
global securities only under limited circumstances on the terms set forth in
the indenture.

Notice to New Hampshire Residents

   NEITHER THE FACT THAT A REGISTRATION STATEMENT OR AN APPLICATION FOR A
LICENSE HAS BEEN FILED UNDER RSA 421-B WITH THE STATE OF NEW HAMPSHIRE NOR THE
FACT THAT A SECURITY IS EFFECTIVELY REGISTERED OR A PERSON IS LICENSED IN THE
STATE OF NEW HAMPSHIRE CONSTITUTES A FINDING BY THE SECRETARY OF STATE THAT ANY
DOCUMENT FILED UNDER RSA 421-B IS TRUE, COMPLETE AND NOT MISLEADING. NEITHER
ANY SUCH FACT NOR THE FACT THAT AN EXEMPTION OR EXCEPTION IS AVAILABLE FOR A
SECURITY OR A TRANSACTION MEANS THAT THE SECRETARY OF STATE HAS PASSED IN ANY
WAY UPON THE MERITS OR QUALIFICATIONS OF, OR RECOMMENDED OR GIVEN APPROVAL TO,
ANY PERSON, SECURITY, OR TRANSACTION. IT IS UNLAWFUL TO MAKE, OR CAUSE TO BE
MADE, TO ANY PROSPECTIVE PURCHASER, CUSTOMER, OR CLIENT ANY REPRESENTATION
INCONSISTENT WITH THE PROVISIONS OF THIS PARAGRAPH.

Industry and Market Data

   In this prospectus we rely on and refer to information and statistics
regarding Apogent's markets and our market share in the sectors in which we
compete. We obtained this information and statistics from various third-party
sources, discussions with our customers and our own internal estimates. We
believe that these sources and estimates are reliable, but have not
independently verified them and cannot guarantee their accuracy or completeness.

                          Forward-Looking Statements

   This prospectus contains and incorporates by reference forward-looking
statements within the meaning of the Private Securities Litigation Reform Act
of 1995. Words such as "anticipate," "believe," "continue," "estimate,"
"expect," "goal," "objective," "outlook" and similar expressions signify
forward-looking statements. These statements are based upon our expectations at
the time we made them and are subject to risks and uncertainties, many of which
are beyond our control, that could cause actual results to differ materially
from those contemplated in the forward-looking statements. In addition to the
assumptions and other factors referred to specifically in connection with
forward-looking statements, factors that could cause our actual results to
differ materially include the factors described under the caption "Risk
Factors" in this prospectus and under the heading "Forward-Looking Statements"
or "Cautionary Factors" in our SEC filings incorporated by reference into this
prospectus. The risks and uncertainties so identified are not the only ones
facing our company. Additional risks and uncertainties not presently known to
us or that we currently believe to be immaterial also may adversely affect us.
Should any risks and uncertainties develop into actual events, these
developments could have material adverse effects on our business, financial
condition and results of operations. For these reasons, we caution you not to
place undue reliance on our forward-looking statements.

                                      ii




                              PROSPECTUS SUMMARY

   This prospectus constitutes part of a registration statement on Form S-3
that we have filed with the SEC using a "shelf" registration process. Under
this shelf process, any selling holder may sell any combination of the
securities described in this prospectus in one or more transactions. This
summary highlights selected information contained elsewhere in this prospectus
and does not contain all the information you may need to consider in making
your investment decision. You should read carefully this entire prospectus and
consider the information set forth in "Risk Factors." When we use the terms
"Apogent," "we," "us" or "our" in this prospectus, we mean Apogent Technologies
Inc. and its subsidiaries on a consolidated basis, unless we state or the
context implies otherwise.

   On December 11, 2000, we spun off our dental business by way of a pro rata
distribution to our shareholders of all the outstanding common stock and
related preferred stock purchase rights of Sybron Dental Specialties, Inc.
("SDS"). As a result of the spin-off, SDS became an independent public company
operating what was our dental business. We continue to operate our labware and
life sciences, clinical diagnostics, and laboratory equipment businesses, as
described herein. We changed our name from Sybron International Corporation to
Apogent Technologies Inc. after obtaining shareholder approval at our 2001
annual meeting. Apogent's financial statements presented in this prospectus
reflect the dental business among our discontinued operations. The continuing
operations consist of our labware and life sciences, clinical diagnostics, and
laboratory equipment businesses.

                           Apogent Technologies Inc.

   We are a leading developer and manufacturer of thousands of value-added
products for the labware and life sciences, clinical diagnostics, and
laboratory equipment industries. Most of these products are manufactured by us
in approximately 80 facilities. Apogent has over 120 facilities worldwide. Our
customers comprise distributors, pharmaceutical and biotechnology companies,
clinical and research laboratories, and original equipment manufacturers
("OEMs"). Approximately 71% of our net sales are generated from sales within
the U.S. and the remainder are generated internationally, mostly from Europe
and Japan.

   We offer a broad mix of products, with over 70% of our net sales consisting
of consumable products ordered on a consistent basis by our customers and
end-users. Most of our products have established brand names, some of which
have been in existence for decades. We focus on developing and manufacturing
products that are industry staples and which are used in the majority of life
sciences and diagnostic and research laboratories. We believe industry
professionals demand our products because of our reputation for quality and the
essential role that our products play in the research and development and
diagnostic efforts of our end-users.

Growth Strategy

   Our goal is to consistently grow our worldwide market presence, net sales,
earnings and cash flows. We plan to continue to grow our business through the
implementation of our strategy, key elements of which are to:

   . develop profitable new products;

   . make strategic acquisitions;

   . increase penetration of existing and new customers;

   . improve operating efficiency; and

   . maintain and enhance our competitive position.

                                      1





                                 The Offering

Issuer....................   Apogent Technologies Inc.

Securities Offered........   Up to $300,000,000 aggregate principal amount of
                             2.25% Senior Convertible Contingent Debt
                             Securities ("CODES") due October 15, 2021,
                             together with the shares of common stock into
                             which the CODES may be converted under certain
                             circumstances.

Maturity Date.............   October 15, 2021.

Ranking...................   The CODES are senior unsecured obligations of
                             Apogent Technologies Inc. and rank equal in right
                             of payment with all existing and future senior
                             unsecured indebtedness of Apogent Technologies
                             Inc., including our 8% Senior Notes due 2011. See
                             "Description of the CODES."

Interest Payment Dates....   April 15 and October 15, beginning April 15, 2002.

Interest Rate.............   2.25% per year, subject to adjustment under
                             circumstances. See "Description of the
                             CODES--Interest Rate Adjustments."

Contingent Interest.......   We will pay contingent interest to the holders of
                             CODES during any six-month period from April 15 to
                             October 14 and from October 15 to April 14,
                             commencing with the six-month period beginning
                             April 15, 2002, if the average trading price of a
                             CODES for the five trading days ending on the
                             second trading day immediately preceding the
                             relevant six-month period equals 120% or more of
                             the principal amount of the CODES. No contingent
                             interest is payable during the six-month period
                             from April 15, 2002 to October 14, 2002.

                             The "trading price" of the CODES on any date of
                             determination means the average of the secondary
                             market bid quotations per CODES obtained by us for
                             $10,000,000 principal amount of the CODES at
                             approximately 3:30 pm, New York City time, on the
                             determination date from three independent
                             nationally recognized securities dealers we
                             select, provided that if at least three such bids
                             cannot reasonably be obtained by us, but two such
                             bids are obtained, then the average of the two
                             bids shall be used, and if only one such bid can
                             reasonably be obtained by us, this one bid shall
                             be used. If we cannot reasonably obtain at least
                             one bid for $10,000,000 principal amount of the
                             CODES from a nationally recognized securities
                             dealer or in our reasonable judgment, the bid
                             quotations are not indicative of the secondary
                             market value of the CODES, then the trading price
                             of the CODES will equal (a) the then-applicable
                             conversion rate of the CODES multiplied by (b) the
                             sale price of our common stock on the
                             determination date. The initial purchasers of the
                             CODES advised us that they intend to make a market
                             in the CODES, but they are not obligated to do so
                             and may discontinue market making at any time
                             without notice. We will advise any holder of a
                             CODES of the trading price determined as described
                             above during the most recent semi-annual
                             determination period upon written request of the
                             holder.

                             The rate of contingent interest payable in respect
                             of any six-month period will equal the greater of
                             (i) a per annum rate equal to 5.0% of

                                      2




                             our estimated per annum borrowing rate for senior
                             non-convertible fixed-rate indebtedness with a
                             maturity date comparable to the CODES and (ii)
                             0.30% per annum, in each case based on the
                             outstanding principal amount of the CODES.
                             Contingent interest will be computed on the basis
                             of a 360-day year comprised of twelve 30-day
                             months.

Guarantees................   The CODES are jointly and severally guaranteed by
                             certain of our domestic subsidiaries as described
                             in the "Description of the CODES--Subsidiary
                             Guarantees." The guarantees will be pari passu
                             with other indebtedness of the guarantors,
                             including their guarantees of our bank credit
                             facility and the 8% Senior Notes due 2011.

Conversion Rights.........   You may convert your CODES prior to stated
                             maturity under any of the following circumstances:

                             . during any quarterly conversion period if the
                               closing sale price of our common stock for a
                               period of at least 20 trading days in the period
                               of 30 consecutive trading days ending on the
                               first day of such conversion period is more than
                               120% of the conversion price on that thirtieth
                               day;

                             . during the five business day period following
                               any 10 consecutive trading-day period in which
                               the average of the trading prices (as defined in
                               this prospectus) for a CODES was less than 105%
                               of the average sale prices (as defined in this
                               prospectus) of our common stock multiplied by
                               the number of shares into which such CODES is
                               then convertible;

                             . during any period in which the credit rating
                               assigned to the CODES by either Moody's or
                               Standard & Poor's is below Ba2 and BB+,
                               respectively, in which the credit rating
                               assigned to the CODES is suspended or withdrawn
                               by either rating agency or in which neither
                               rating agency continues to rate the CODES or
                               provide ratings services or coverage to us;

                             . if the CODES have been called for redemption; or

                             . upon the occurrence of specified corporate
                               transactions described under "Description of the
                               CODES--Conversion Rights."

                             For each CODES surrendered for conversion, you
                             initially will receive 32.7955 shares of our
                             common stock. This represents an initial
                             conversion price of approximately $30.49 per share
                             of common stock. The conversion rate (and the
                             conversion price) may be adjusted for certain
                             reasons, but will not be adjusted for accrued
                             interest (including contingent interest), if any.
                             Upon conversion, you will not receive any cash
                             payment representing accrued interest. Instead,
                             accrued interest will be deemed paid by the common
                             stock received by you on conversion. CODES called
                             for redemption may be surrendered for conversion
                             until the close of business one business day prior
                             to the redemption date.

Sinking Fund..............   None.

                                      3





Optional Redemption by
Apogent...................   We may not redeem the CODES prior to October 20,
                             2004. We may redeem some or all of the CODES on or
                             after October 20, 2004 for a price equal to 100%
                             of the principal amount of the CODES plus any
                             accrued and unpaid interest (including contingent
                             interest) to, but excluding, the redemption date,
                             as set forth under "Description of the
                             CODES--Optional Redemption by Apogent."

Optional Repurchase Right
of Holders................   You may require us to repurchase all or a portion
                             of your CODES on October 20, 2004 and on October
                             15, 2006, 2011 and 2016 at a repurchase price
                             equal to 100% of the principal amount of those
                             CODES plus any accrued and unpaid interest
                             (including contingent interest) to the date of
                             purchase.

Change of Control
Repurchase Right of Holders  Upon a change of control of Apogent Technologies
                             Inc., you may require us, subject to certain
                             conditions, to repurchase all or a portion of your
                             CODES. We will pay a repurchase price equal to
                             100% of the principal amount of the CODES plus any
                             accrued and unpaid interest (including contingent
                             interest) to, but excluding, the repurchase date.
                             See "Description of the CODES--Repurchase at
                             Option of Holders--Change of Control Put."

Form, Denomination and
Registration..............   The CODES have been issued in fully registered
                             form, in denominations of $1,000 and are
                             represented by one or more global securities,
                             deposited with the trustee as custodian for The
                             Depository Trust Company ("DTC") and registered in
                             the name of Cede & Co., DTC's nominee. Beneficial
                             interests in the global securities will be shown
                             on, and any transfers will be effected only
                             through, records maintained by DTC and its
                             participants. See "Description of the CODES--Form,
                             Denomination and Registration."

Use of Proceeds...........   We will not receive any of the proceeds from the
                             sale by any selling holder of the CODES or shares
                             of common stock offered under this prospectus.

Registration Rights.......   This prospectus is part of a shelf registration
                             statement that we and the guarantors agreed to
                             file with the SEC. In connection with the initial
                             private placement of the CODES, we agreed to keep
                             the shelf registration statement effective until
                             the earliest of:

                             . two years after the last date of original
                               issuance of any of the CODES (i.e., until
                               October 10, 2003);

                             . the date when the holders of the CODES and the
                               common stock issuable upon conversion of the
                               CODES are able to sell all these securities
                               immediately pursuant to Rule 144(k) under the
                               Securities Act; and

                             . the date when all of the CODES, the guarantees
                               and the common stock into which the CODES are
                               convertible are registered under a

                                      4




                             shelf registration statement and sold in
                             accordance with it, provided that selling holders
                             must complete and deliver in a timely manner the
                             selling securityholder election and questionnaire
                             described in this prospectus.

                             See "Description of the CODES--Registration
                             Rights."

Absence of a Public Market
for the CODES.............   The CODES issued in the initial private placement
                             are eligible for trading in the PORTAL market.
                             However, the CODES that have been or in the future
                             may be sold using this prospectus will no longer
                             be eligible for trading in the PORTAL market. We
                             cannot assure you that any active or liquid market
                             will develop or will be maintained for the CODES.

New York Stock Exchange
Symbol For Our Common Stock  Our common stock is traded on the New York Stock
                             Exchange under the symbol "AOT."

                                 Risk Factors

   You should read the "Risk Factors" section to understand the risks
associated with an investment in the CODES.

                                      5



                                 RISK FACTORS

   You should carefully consider the following factors and other information
contained and incorporated by reference in this prospectus before deciding to
purchase the CODES or the common stock into which they may be converted. Any of
these risks could materially adversely affect our business, financial
condition, results of operations and prospects, which could in turn materially
adversely affect the price of the CODES and the common stock issuable upon
conversion of the CODES.

Risks Relating to Apogent

  Our holding company structure increases financial risks.

   We are organized as a holding company, with all of our net sales generated
through our subsidiaries. Although we expect that our significant present and
future U.S. subsidiaries will fully and unconditionally guarantee any debt
securities issued pursuant to this prospectus, our foreign subsidiaries own a
significant portion of our consolidated assets and are a significant part of
our operations. Approximately 18% of our net sales and 7% of our operating cash
flow for 2001 were from foreign, non-guarantor subsidiaries. Consequently, our
operating cash flow and ability to service indebtedness and stock dividends
depend in part upon the operating cash flow of our non-guarantor subsidiaries
and the payment of funds by them to us in the form of loans, dividends or
otherwise. Their ability to pay dividends and make loans, advances and other
payments to us depends upon statutory or other contractual restrictions, which
may include requirements to maintain minimum levels of working capital and
other assets.

  Our international operations pose currency and other risks.

   We have significant operations outside the United States, where a
significant portion of our revenue is generated. We are therefore subject to
risk factors affecting our international operations, including relevant foreign
currency exchange rates, which can affect the cost of our products or the
ability to sell our products in foreign markets, and the value in U.S. dollars
of sales made in foreign currencies. Our sales were reduced by $10.1 million
and $6 million in 2001 and 2000, respectively, by the impact of currency
fluctuations. Other factors include our ability to obtain effective hedges
against fluctuations in currency exchange rates; foreign trade, monetary and
fiscal policies; laws, regulations and other activities of foreign governments,
agencies and similar organizations; risks associated with having major
manufacturing facilities located in countries that have historically been less
stable than the United States in several respects, including fiscal and
political stability; and risks associated with an economic downturn in other
countries. In addition, world events can increase the volatility of the
currency markets, and such volatility could affect our financial results.

  Our failure to keep pace with the technological demands of our customers or
  with the products and services offered by our competitors could significantly
  harm our business.

   Some of the industries served by our products are characterized by rapid
technological changes and new product introductions. Some of our competitors
may invest more heavily in research or product development than we do.
Successful new product offerings depend upon a number of factors, including our
ability to:

   . accurately anticipate customer needs;

   . innovate and develop new technologies and applications;

   . successfully commercialize new products in a timely manner;

   . price our products competitively and manufacture and deliver our products
     in sufficient volumes and on time; and

   . differentiate our offerings from those of our competitors.

If we do not introduce new products in a timely manner and make enhancements to
meet the changing needs of our customers, some of our products could become
obsolete over time, in which case our customer relationships, revenue, and
operating results would suffer.

                                      6



  Our operating results may suffer if the industries into which we sell our
  products are in downward cycles.

   Some of the industries and markets into which we sell our products are
cyclical. Any significant downturn in our customers' markets or in general
economic conditions could result in reduced demand for our products and could
harm our business.

  Future acquisitions may not be available or may create transitional
  challenges.

   A significant portion of our growth over the past several years has been
achieved through our acquisition program. Our rate of continued growth is
therefore subject to factors affecting our ability to continue pursuing our
current acquisition strategy and to be successful with that strategy. These
factors include our ability to raise capital beyond the capacity of our
existing credit facilities or to use our stock for acquisitions, the cost of
the capital required to effect our acquisition strategy, the availability of
suitable acquisition candidates at reasonable prices, competition for
appropriate acquisition candidates, our ability to realize the synergies
expected to result from acquisitions, our ability to retain key personnel in
connection with acquisitions and the ability of our existing personnel to
efficiently handle increased transitional responsibilities resulting from
acquisitions.

  We may incur restructuring or impairment charges that would reduce our
  earnings.

   We have in the past and may in the future restructure some of our
operations. In such circumstances, we may take actions that would result in a
charge and reduce our earnings. These restructurings have or may be undertaken
to realign our subsidiaries, eliminate duplicative functions, rationalize our
operating facilities and products and reduce our staff. These restructurings
may be implemented to improve the operations of recently acquired subsidiaries
as well as subsidiaries that have been part of our operations for many years.
Our historical financial results include special charges related to
restructuring activities of approximately $5.3 million, $11.3 million and $8.5
million in fiscal years 2002, 2000 and 1998, respectively. As a result of
adjustments to prior restructuring reserves, we incurred special charges of
$0.6 million and $0.3 million for 2001 and 1999, respectively. Additionally, on
October 1, 2001 we adopted SFAS 142, "Goodwill and Other Intangible Assets,"
which requires that goodwill and intangible assets that have an indefinite
useful life be tested at least annually for impairment. The Company has
performed its initial impairment tests and the results indicate no
circumstances of impaired goodwill, but future impairment may occur at any time.

  We rely heavily upon sales to key distributors and original equipment
  manufacturers ("OEMs"), and could lose sales if any of them stop doing
  business with us.

   Our three most significant distributors represent a significant portion of
our revenues. For example, sales to Fisher Scientific, VWR Scientific, and
Allegiance Healthcare Corporation accounted for approximately 12%, 10% and 6%
of revenues in fiscal 2001, respectively. Our reliance on major independent
distributors for a substantial portion of our sales subjects our sales
performance to volatility in demand from distributors. We can experience
volatility when distributors merge or consolidate, when inventories are not
managed to end-user demand, or when distributors experience softness in their
sales. We rely primarily upon the long-standing and mutually beneficial nature
of our relationships with our key distributors, rather than on contractual
rights, to protect these relationships. Volatility in end-user demand can also
arise with large OEM customers to whom we sell directly. The loss of a
substantial contract could adversely affect our business. Sales to our OEM
customers are sometimes unpredictable and wide variances sometimes occur
quarter to quarter.

  We could be injured by disruptions of our manufacturing operations.

   We rely upon our manufacturing operations to produce most of the products we
sell. Any significant disruption of those operations for any reason, such as
labor unrest, power interruptions, fire, war, or other force majuere, could
adversely affect our sales and customer relationships and therefore adversely
affect the value of

                                      7



our securities. In particular, the supply of white glass, which is used in our
clinical and industrial segment's worldwide manufacturing operations, comes
solely from our glass manufacturing facility in Switzerland. Risks include
delays encountered in connection with the periodic rebuilding of the sheet
glass furnace or furnace malfunctions. Although most of our raw materials are
available from a number of potential suppliers, our operations also depend upon
our ability to obtain raw materials at reasonable prices.

  The success of many of our products depends on the effectiveness of our
  patents, trademarks and licenses to defend our intellectual property rights.

   Our success with many of our products depends, in part, on our ability to
protect our current and future innovative products and to defend our
intellectual property rights. Our subsidiaries' products are sold under a
variety of trademarks and trade names. They own or license all of the
trademarks and trade names we believe to be material to the operation of their
businesses. We also rely upon a combination of non-disclosure and other
contractual agreements and trade secret, copyright, patent and trademark laws
to protect our intellectual property rights. Disputes may arise concerning the
ownership of intellectual property or the applicability of confidentiality
agreements. If we fail to adequately protect our intellectual property,
competitors may manufacture and market products similar to ours.

  We could be hurt by product liability claims or other litigation.

   Our business is subject to the risks of claims involving our products and
facilities (past and present) and other legal and administrative proceedings,
including the expense of investigating, litigating and settling any claims.
Although we currently maintain insurance against some of these risks, uninsured
losses could occur.

  Our business is subject to regulatory risks.

   Our ability to continue manufacturing and selling those of our products that
are subject to regulation by the United States Food and Drug Administration or
other domestic or foreign governments or agencies is subject to a number of
risks. In the future, some of our products may be affected by the passage of
stricter laws or regulations, reclassification of our products into categories
subject to more stringent requirements, or the withdrawal of approvals needed
to sell one or more of our products.

  Some of our products are affected by general levels of insurance and
  reimbursement.

   The demand for and pricing of some of our products can be affected by
changing levels of public and private health care budgets, including
reimbursement by private or governmental insurance programs.

  We could be harmed by the loss of key management.

   The success of our operations depends in significant part upon the
experience and expertise of our management team, both within Apogent and in our
operating subsidiaries. Any loss of these key personnel could harm our business.

  Our recent separation from SDS poses a potential tax sharing and
  indemnification risk.

   In connection with the SDS spin-off, we and SDS each agreed to indemnify the
other with respect to certain indebtedness, liabilities and obligations,
including potential tax liabilities if future transactions change the tax
treatment of the spin-off. Our ability to collect on these indemnities from
SDS, if applicable, depends upon the future financial strength of SDS.

  We sometimes experience quarterly variations in our operating results.

   Our business is subject to quarterly variations in operating results caused
by a number of factors, including business and industry conditions, timing of
acquisitions, distribution and OEM customer issues, and other factors discussed
herein or in our other public filings. All of these factors make it difficult
to predict operating results for any particular period.

                                      8



  Other risks may arise.

   We may be subject to risks arising from other business and investment
considerations that may be disclosed from time to time in our Securities and
Exchange Commission filings or in other publicly available written documents.

Risks Relating to Investment in the CODES and Common Stock

  You should consider the United States federal income tax consequences of
  owning CODES.

   We and each holder agree in the indenture to treat the CODES as "contingent
payment debt instruments" subject to the contingent payment debt regulations.
As a result, a holder will be required to include amounts in income, as
original issue discount, in advance of cash such holder receives on a CODES,
and to accrue interest on a constant yield to maturity basis at a rate
comparable to the rate at which we would borrow in a noncontingent,
nonconvertible borrowing (5.90%), even though the CODES will have a
significantly lower yield to maturity. A holder will recognize taxable income
significantly in excess of cash received while the CODES are outstanding. In
addition, under the indenture, a holder will recognize ordinary income, if any,
upon a sale, exchange, conversion or redemption of the CODES at a gain. See
"Certain United States Federal Income Tax Considerations."

  The CODES do not contain certain restrictive covenants, and there is limited
  protection in the event of a change of control.

   The indenture under which the CODES were issued does not contain restrictive
covenants that would protect you from several kinds of transactions that may
adversely affect you as a holder of a CODES. In particular, the indenture does
not contain covenants that limit our ability to pay dividends or make
distributions on or redeem our capital stock or limit our ability to incur
additional indebtedness and, therefore, protect you in the event of a highly
leveraged transaction or other similar transaction. In addition, the
requirement that we offer to repurchase the CODES upon a change of control is
limited to the transactions specified in the definition of a "change of
control" under "Description of CODES--Repurchase at Option of Holders--Change
of Control Put." Accordingly, we could enter into certain transactions, such as
acquisitions, refinancings or a recapitalization, that could affect our capital
structure and the value of our common stock but would not constitute a change
of control.

  Our ability to repurchase the CODES with cash upon a change of control may be
  limited.

   In certain circumstances involving a change of control of Apogent, you may
require us to repurchase all or a portion of your CODES to the extent set forth
in this prospectus. If a change in control were to occur, we cannot assure you
that, if required, we will have sufficient cash or other financial resources at
that time or would be able to arrange financing to pay the repurchase price of
the CODES in cash. Our ability to repurchase the CODES in that event may be
limited by law, by the indenture, by the terms of other agreements relating to
our senior debt and by indebtedness and agreements that we may enter into in
the future which may replace, supplement or amend our existing or future debt.
If a change in control occurs at a time when we are prohibited from
repurchasing or redeeming the CODES, we could seek the consent of lenders to
repurchase the CODES or could attempt to refinance the borrowings that contain
this prohibition. If we do not obtain a consent or refinance these borrowings,
we could remain prohibited from repurchasing the CODES. Our failure to
repurchase the CODES would constitute an event of default under the indenture
under which we issued the CODES, which might constitute a default under the
terms of our other indebtedness at that time. In these circumstances, the
subordination provisions in the indenture would likely restrict payments to you
before the other debt is repaid in full.

                                      9



  There may not be a liquid market for the CODES, and you may not be able to
  sell your CODES at attractive prices or at all.

   The CODES were a new issue of securities for which there is currently no
public trading market. We do not intend to apply for listing of the CODES on
any securities exchange. Although the initial purchasers have advised us that
they currently intend to make a market in the CODES, they are not obligated to
do so and may discontinue their market-making activities at any time without
notice. The CODES issued in the initial private placement are eligible for
trading in the PORTAL market, but the CODES sold using this prospectus will no
longer be eligible for trading in the PORTAL market. We cannot predict whether
an active trading market for the CODES will develop or will be sustained. If an
active market for the CODES fails to develop or be sustained, the trading price
of the CODES could fall. Even if an active trading market were to develop, the
CODES could trade at prices that may be lower than the initial offering price.
The trading price of the CODES will depend on many factors, including:

   . prevailing interest rates and interest rate volatility;

   . the markets for similar securities;

   . our financial condition, results of operations and prospects;

   . the publication of earnings estimates or other research reports and
     speculation in the press or investment community;

   . changes in our industry and competition; and

   . general market and economic conditions.

As a result, we cannot assure you that you will be able to sell the CODES at
  attractive prices or at all.

  A downgrade, suspension or withdrawal of the rating assigned by a rating
  agency to the CODES, if any, could cause the liquidity or market value of the
  CODES to decline significantly.

   We have received ratings of the CODES by Standard & Poor's and Moody's. We
cannot assure you that the ratings so assigned will remain for any given period
of time or that a rating will not be lowered or withdrawn entirely by a rating
agency if in that rating agency's judgment future circumstances relating to the
basis of the rating, such as adverse changes in our business, so warrant.

  The market price for our common stock may be highly volatile.

   The market price for our common stock may be highly volatile. There may be a
significant impact on the market price of our common stock due to a variety of
factors, including:

   . prevailing interest rates and interest rate volatility;

   . the market for similar securities;

   . our financial condition, results of operations and prospects;

   . any future issuances of our common stock, which may include primary
     offerings for cash, issuances in connection with business acquisitions,
     and the grant or exercise of stock options from time to time;

   . the publication of earnings estimates or other research reports and
     speculation in the press or investment community;

   . changes in our industry and competitors;

   . any outbreak or escalation of hostilities; and

   . general market and economic conditions.

   In addition, the stock market in general, and the New York Stock Exchange in
particular, have experienced extreme price and volume fluctuations that have
often been unrelated or disproportionate to the operating

                                      10



performance of these companies. Broad market and industry factors may
negatively affect the market price of our common stock, regardless of actual
operating performance. In the past, following periods of volatility in the
market price of a company's securities, securities class action litigation has
often been instituted against companies. This type of litigation, if
instituted, could result in substantial costs and a diversion of management's
attention and resources, which would harm our business.

   Volatility in the market price of our common stock may make it more
difficult for you to sell the common stock you receive on conversion of the
CODES. In addition, because the CODES will be convertible into our common
stock, their value will likely also be affected by the factors summarized above.

  We are restricted by the terms of our outstanding senior debt, which could
  adversely affect us and increase your credit risk.

   The indenture relating to our outstanding senior notes and our revolving
credit agreement include a number of significant financial and operating
restrictions, which may prevent us from capitalizing on business opportunities
and taking some corporate actions. These include, among other things,
restrictions on our ability to:

   . pay dividends or make distributions in respect of our capital stock or to
     make certain other restricted payments;

   . incur indebtedness;

   . create liens;

   . make loans or investments;

   . enter into sale and leaseback transactions;

   . agree to payment restrictions affecting our restricted subsidiaries;

   . consolidate, merge, sell or lease all or substantially all of our assets;
     and

   . enter into transactions with affiliates.

   In addition, our revolving credit facility contains financial covenants
that, among other things, require us to maintain a minimum net worth and a
minimum interest coverage ratio and that impose a maximum leverage ratio. Our
ability to comply with these ratios and limits may be affected by events beyond
our control, and a breach could result in an acceleration of our obligations,
which could have a material adverse effect on our business, financial
condition, and results of operations and prospects.

  The CODES are unsecured, and therefore are effectively subordinated to any
  secured debt, and the subsidiary guarantees of the CODES are unsecured and
  effectively subordinated to the secured debt of the guarantors.

   The CODES and subsidiary guarantees are not secured by any of our assets or
those of our subsidiaries. As a result, the CODES and guarantees are
effectively subordinated to any secured debt we may incur and to the secured
debt of any guarantor subsidiaries to the extent of the value of the assets
securing such debt. In any liquidation, dissolution, bankruptcy or other
similar proceeding, the holders of our secured debt or the debt of any
guarantor subsidiaries may assert rights against the secured assets in order to
receive full payment of their debt before the assets may be used to pay the
holders of the CODES.

  The subsidiary guarantees may raise fraudulent transfer issues, which could
  impair the enforceability of the subsidiary guarantees.

   Under U.S. bankruptcy law and comparable provisions of state fraudulent
transfer laws, a court could subordinate or void any subsidiary guarantee if it
found that the guarantee was incurred with actual intent to

                                      11



hinder, delay or defraud creditors or the guarantor did not receive fair
consideration or reasonably equivalent value for the guarantee and the
guarantor:

   . was insolvent or was rendered insolvent because of the guarantee and the
     application of proceeds of the CODES or the guarantee;

   . was engaged in a business or transaction for which its remaining assets
     constituted unreasonably small capital to carry on its business;

   . intended to incur, or believed that it would incur, debts beyond its
     ability to pay at maturity; or

   . was a defendant in an action for money damages, or had a judgment for
     money damages docketed against it, if, in either case, after final
     judgment the judgment is unsatisfied.

   We cannot be sure as to the standard that a court would use to determine
whether or not the guarantors were solvent at the relevant time, or that the
issuance of the guarantees would not be voided or the guarantees would not be
subordinated to the guarantors' other debt. A guarantee could also be subject
to the claim that, because the guarantee was incurred for the benefit of
Apogent, and only indirectly for the benefit of the guarantor, the obligations
of the applicable guarantor were incurred for less than fair consideration. If
a court voided a guarantee as a result of fraudulent conveyance, or held it
unenforceable for any other reason, securityholders would cease to have a claim
against the guarantor and would be solely creditors of Apogent and any other
guarantors.

  From time to time the guarantors of the CODES may differ from those under our
  other existing senior debt.

   While the guarantees of the CODES are pari passu with the guarantees of our
8% Senior Notes due 2011 ("2011 Senior Notes") and our bank credit facility,
the guarantors under the CODES may from time to time not include all of the
guarantors under such other existing senior debt. In the event of a bankruptcy,
liquidation or reorganization of any of the non-guarantor subsidiaries, holders
of their indebtedness and their trade creditors will generally be entitled to
payment of their claims from the assets of those subsidiaries before any assets
of the non-guarantor subsidiaries are made available for distribution to
Apogent.

  Our preferred stock purchase rights, certain provisions of Wisconsin law and
  our articles of incorporation and bylaws contain certain provisions that
  could make a takeover of Apogent more difficult.

   Our preferred stock purchase rights, certain provisions of Wisconsin law and
our articles of incorporation and bylaws could have the effect of delaying or
preventing a third party from acquiring us, even if a change in control would
be beneficial to our shareholders. In addition to our preferred stock purchase
rights, these provisions of our articles of incorporation and bylaws include:

   . providing for a classified board of directors with staggered, three-year
     terms;

   . permitting removal of directors only for cause;

   . providing that vacancies on the board of directors will be filled by the
     remaining directors then in office; and

   . requiring advance notice for shareholder proposals and director nominees.

   In addition, the Wisconsin control share acquisition statute and Wisconsin's
"fair price" and "business combination" provisions limit the ability of an
acquiring person to engage in certain transactions or to exercise the full
voting power of acquired shares of a "resident domestic corporation" under
certain circumstances. It is not clear whether Apogent will be considered a
"resident domestic corporation" for these purposes. These provisions and other
provisions of Wisconsin law could make it more difficult for a third party to
acquire us, even if doing so would benefit our shareholders. As a result,
offers to acquire Apogent which represent a premium over the available market
price of our common stock may be withdrawn or otherwise fail to be realized.

                                      12



                                USE OF PROCEEDS

   We will not receive any proceeds from the sale of the CODES or the common
stock into which the CODES may be convertible. The selling holders will receive
all of the net proceeds from the sale of the CODES and the common stock into
which the CODES may be convertible that they, respectively, own.

                          DIVIDEND HISTORY AND POLICY

   We have never declared or paid any cash dividends on our capital stock. We
currently intend to retain any future earnings to finance the growth and
development of our business and do not anticipate paying any cash dividends in
the foreseeable future. Any future decision to pay cash dividends will be at
the discretion of our board of directors and will depend upon, among other
factors, our earnings, financial condition and other requirements.

                          PRICE RANGE OF COMMON STOCK

   Our common stock trades on the New York Stock Exchange under the symbol
"AOT." As of December 7, 2001, there were 106,129,455 shares of our common
stock issued and outstanding held by 365 shareholders of record. We list in the
table below closing information on the high and low sales prices for our common
stock during the periods indicated as reported on the New York Stock Exchange.
Because transactions before December 11, 2000 reflect prices prior to our
spin-off of SDS, they may not be indicative of the value of Apogent's ongoing
businesses during those periods.



                                                        Price Range Of
                                                         Common Stock
                                                        ---------------
         Fiscal Year and Quarter                         High     Low
         -----------------------                        ------- -------
                                                         (in dollars)
                                                          
         2000
            1st Quarter................................ $27.813 $20.668
            2nd Quarter................................  29.313  21.375
            3rd Quarter................................  33.063  16.375
            4th Quarter................................  25.875  19.063
         2001
            1st Quarter through December 11, 2000*..... $29.125 $18.952
            1st Quarter beginning December 12, 2000*...  24.438  18.625
            2nd Quarter................................  22.050  17.875
            3rd Quarter................................  25.800  18.950
            4th Quarter................................  25.400  21.350
         2002
            1st Quarter................................ $ 26.52 $ 22.96
            2nd Quarter................................ $ 26.50 $ 22.56
            3rd Quarter through June 7, 2002........... $ 25.49 $ 22.90

- --------
* Our spin-off of SDS was completed on December 11, 2000, and our common stock
  began to trade regularly following the spin-off on December 12, 2000.

   For the last reported sales price for our common stock on a recent date, see
the cover page of this prospectus.

                                      13



                CONSOLIDATED RATIO OF EARNINGS TO FIXED CHARGES

   The following table sets forth our historical ratio of earnings to fixed
charges for Apogent for the periods indicated:



                                             Year ended September 30,
                                             ------------------------
                                             2001 2000 1999 1998 1997
                                             ---- ---- ---- ---- ----
                                                  
          Ratio of earnings to fixed charges 4.4  3.8  4.0  3.5  3.8


   For this purpose, "earnings" consists of income from continuing operations
before income taxes and fixed charges (exclusive of capitalized, amortized
premiums related to indebtedness, an estimate of interest within rental expense
and preferred stock dividends). "Fixed charges" consists of interest expense
and capitalized, amortized premiums related to indebtedness and an estimate of
interest within rental expense. Apogent did not pay any preferred stock
dividends during the periods indicated.

                           DESCRIPTION OF THE CODES

   We issued the CODES under an indenture, dated October 10, 2001, between us,
the guarantors and The Bank of New York, as trustee. The terms of the CODES
include those provided in the indenture and those provided in the registration
rights agreement, which we entered into with Lehman Brothers Inc., Credit
Suisse First Boston Corporation, Banc of America Securities LLC, ABN AMRO
Rothschild LLC and UBS Warburg LLC, the initial purchasers of the CODES.

   The following description is only a summary of the material provisions of
the CODES, the indenture and the registration rights agreement. We urge you to
read these documents in their entirety because they, and not this description,
define your rights as holders of the CODES. You may request copies of these
documents at our address set forth under the caption "About This Prospectus."

   When we refer to Apogent in this section, we refer only to Apogent
Technologies Inc., a Wisconsin corporation, and not its subsidiaries.

Brief Description of the CODES

   The CODES:

   . are limited to $300,000,000 aggregate principal amount, all of which were
     issued on October 10, 2001;

   . bear interest at a rate of 2.25% per year, subject to interest rate
     adjustments as described below;

   . bear contingent interest in the circumstances described under
     "--Contingent Interest;"

   . are general unsecured obligations, ranking equally with all of our other
     unsecured senior indebtedness and senior in right of payment to any
     subordinated indebtedness; as indebtedness of Apogent, the CODES are
     effectively subordinated to all indebtedness and liabilities of our
     subsidiaries, except for indebtedness of the guarantors;

   . are convertible into our common stock at a conversion price of
     approximately $30.49 per share, subject to adjustment as described under
     "--Conversion Rights," in the following circumstances:

     . if the sale price of our common stock is above 120% of the conversion
       price measured over a specified number of trading days;

     . if the ratio of the trading price of the CODES to the conversion value
       of the CODES is below 105% measured over a specified number of trading
       days;

     . during any period in which the credit ratings assigned to the CODES by
       Moody's Investors Service, Inc., or Moody's, is lower than "Ba2" or by
       Standard & Poor's Rating Services, or Standard

                                      14



     and Poor's, is lower than "BB+", in which the credit rating assigned to
     the CODES is suspended or withdrawn by either rating agency or in which
     neither agency continues to rate the CODES or provide ratings services or
     coverage to Apogent;

     . if the CODES have been called for redemption; and

     . upon the occurrence of specified corporate transactions;

   . are redeemable at our option in whole or in part beginning on October 20,
     2004 upon the terms and for a price equal to 100% of the principal amount
     of the CODES plus any accrued and unpaid interest (including contingent
     interest) as set forth under "--Optional Redemption by Apogent;"

   . may be repurchased by us, at your option, on October 20, 2004 and on
     October 15, 2006, 2011 and 2016 or if a change of control occurs; and

   . will be due on October 15, 2021, unless earlier converted, redeemed by us
     at our option or repurchased by us at your option.

   The indenture does not contain any financial covenants and does not restrict
us or any of the guarantors from paying dividends, incurring additional senior
debt or any other indebtedness or issuing or repurchasing our other securities.
The indenture also will not protect you in the event of a highly leveraged
transaction or a change in control of Apogent except to the extent described
under "--Repurchase at Option of Holders --Change of Control Put" below.

   Under the indenture, we have agreed, and by acceptance of a beneficial
interest in the CODES each beneficial owner of the CODES will be deemed to have
agreed, among other things, for United States federal income tax purposes, to
treat the CODES as indebtedness that is subject to the regulations governing
contingent payment debt instruments, and, for purposes of those regulations, to
treat the fair market value of any stock received upon any conversion of the
CODES as a contingent payment, and the discussion herein assumes that such
treatment is correct. However, the characterization of instruments such as the
CODES and the application of such regulations is uncertain in several respects.
See "Certain United States Federal Income Tax Considerations--Classification of
the CODES."

   No sinking fund is provided for the CODES. The CODES will not be subject to
defeasance. The CODES will be issued only in registered form in denominations
of $1,000 and any integral multiple of $1,000 above that amount. No service
charge will be made for any registration of transfer or exchange of CODES, but
we may require payment of a sum sufficient to cover any tax or other
governmental charge payable in connection therewith.

   You may present definitive CODES for conversion, registration of transfer
and exchange, without service charge, at our office or agency in New York City,
which initially is the office or agency of the trustee in New York City. For
information regarding conversion, registration of transfer and exchange of
global securities, see "--Form, Denomination and Registration."

Brief Description of the Guarantees

   The CODES have been and will be jointly and severally guaranteed by certain
of Apogent's existing and future U.S. subsidiaries.

   The guarantees of the CODES:

   . are and will be general obligations of each guarantor;

   . rank equally with the obligations of the guarantors under their guarantees
     of Apogent's bank credit facility and its outstanding 2011 Senior Notes;
     and

   . terminate with respect to each guarantor upon the termination of the
     obligations of such guarantor under the Credit Agreement, dated December
     1, 2000, between Apogent, the guarantors and The Chase

                                      15



   Manhattan Bank, as Administrative Agent, as amended, supplemented or
   modified from time to time (the "Credit Agreement").

Interest

   The CODES bear interest from October 10, 2001 at the rate of 2.25% per year,
subject to adjustment upon the occurrence of a reset transaction. See
"--Interest Rate Adjustments" below. We will also pay contingent interest on
the CODES in the circumstances described under "--Contingent Interest." We will
pay interest semiannually on April 15 and October 15 of each year to the
holders of record at the close of business on the preceding April 1 and October
1, respectively, beginning April 15, 2002. There are two exceptions to the
preceding sentence:

   . In general, we will not pay interest accrued and unpaid on any CODES that
     is converted into our common stock. See "--Conversion Rights." If a holder
     of CODES converts after a record date for an interest payment but prior to
     the corresponding interest payment date, it will receive interest accrued
     and paid on such CODES on the interest payment date, notwithstanding the
     conversion of such CODES prior to such interest payment date, because such
     holder will have been the holder of record on the corresponding record
     date. However, at the time such holder surrenders such CODES for
     conversion, it must pay us an amount equal to the interest that has
     accrued and will be paid on the interest payment date. The preceding
     sentence does not apply, however, to a holder that converts, after a
     record date for an interest payment date but prior to the corresponding
     interest payment date, CODES that we call for redemption prior to such
     conversion on a redemption date that is on or prior to the third business
     day after such interest payment date.

   . We will pay interest to a person other than the holder of record on the
     record date if we redeem the CODES on a date that is after the record date
     and prior to the corresponding interest payment date. In this instance, we
     will pay interest accrued and unpaid on the CODES being redeemed to, but
     not including, the redemption date to the same person to whom we will pay
     the principal of such CODES.

   Except as provided below, we will pay interest on:

   . the global securities to DTC in immediately available funds;

   . the definitive CODES having an aggregate principal amount of $5,000,000 or
     less by check mailed to the holders of the CODES; and

   . the definitive CODES having an aggregate principal amount of more than
     $5,000,000 by wire transfer in immediately available funds if requested by
     the holder of those CODES.

   At maturity, we will pay interest on the definitive CODES at our office or
agency in New York City, which initially is the office or agency of the trustee
in New York City.

   We will pay principal on:

   . the global securities to DTC in immediately available funds; and

   . the definitive CODES at our office or agency in New York City, which
     initially will be the office or agency of the trustee in New York City.

   Interest generally will be computed on the basis of a 360-day year comprised
of twelve 30-day months.

Interest Rate Adjustments

   If a reset transaction occurs, the interest rate will be adjusted to equal
the adjusted interest rate from the effective date of such reset transaction
to, but not including, the effective date of any succeeding reset transaction.

                                      16



   A "reset transaction" means:

   . a merger, consolidation or statutory share exchange to which the entity
     that is the issuer of the common stock into which the CODES are then
     convertible is a party;

   . a sale of all or substantially all the assets of that entity;

   . a recapitalization of that common stock; or

   . a distribution described in the fourth bullet point of the sixth paragraph
     under "--Conversion Rights" below,

after the effective date of which transaction or distribution the CODES would
  be convertible into:

   . shares of an entity the common stock of which had a dividend yield for the
     four fiscal quarters of such entity immediately preceding the public
     announcement of the transaction or distribution that was more than 2.5%
     higher than the dividend yield on our common stock (or other common stock
     then issuable upon conversion of the CODES) for the four fiscal quarters
     preceding the public announcement of the transaction or distribution; or

   . shares of an entity that announces a dividend policy prior to the
     effective date of the transaction or distribution which policy, if
     implemented, would result in a dividend yield on that entity's common
     stock for the next four fiscal quarters that would result in such a 2.5%
     increase.

   The "adjusted interest rate" with respect to any reset transaction will be
the rate per year that is the arithmetic average of the rates quoted by two
dealers engaged in the trading of convertible securities selected by us or our
successor as the rate at which interest should accrue so that the fair market
value, expressed in dollars, of a CODES immediately after the later of:

   . the public announcement of the reset transaction; or

   . the public announcement of a change in dividend policy in connection with
     the reset transaction,

will equal the average trading price (as described below under "--Conversion
Rights--Conversion Upon Satisfaction of Market Price Conditions") of a CODES
for the 20 trading days preceding the date of public announcement of the reset
transaction. However, the adjusted interest rate will not be less than 2.25%
per year.

   For purposes of the definition of reset transaction, the dividend yield on
any security for any period means the dividends paid or proposed to be paid
pursuant to an announced dividend policy on the security for that period
divided by, if with respect to dividends paid on that security, the average
sale price (as defined below) of the security during that period and, if with
respect to dividends proposed to be paid on the security, the closing price of
such security on the effective date of the related reset transaction.

   The "sale price" of a security on any date of determination means:

   . the closing sale price (or, if no closing sale price is reported, the last
     reported sale price) of a security (regular way) on the New York Stock
     Exchange on that date;

   . if that security is not listed on the New York Stock Exchange on that
     date, the closing sale price as reported in the composite transactions for
     the principal U.S. securities exchange on which that security is listed;

   . if that security is not so listed on a U.S. national or regional
     securities exchange, the closing sale price as reported by the Nasdaq
     National Market;

   . if that security is not so reported, the last price quoted by Interactive
     Data Corporation for that security or, if Interactive Data Corporation is
     not quoting such price, a similar quotation service selected by us; or

                                      17



   . if that security is not so quoted, the average of the mid-point of the
     last bid and ask prices for that security from at least two dealers
     recognized as market-makers for that security.

Contingent Interest

   In addition to the interest we will pay as described under "--Interest" and
"--Interest Rate Adjustments," we promised that we will pay contingent
interest, subject to the accrual and record date provisions described above, to
the holders of CODES during the six-month periods from April 15 to October 14
and from October 15 to April 14, as appropriate, commencing with the six-month
period beginning April 15, 2002, if the average trading price, as described
below under "--Conversion Rights--Conversion Upon Satisfaction of Market Price
Conditions," of a CODES for the five trading days ending on the second trading
day immediately preceding the beginning of the relevant six-month period equals
120% or more of the principal amount of CODES. No contingent interest is
payable for the six-month period that began April 15, 2002.

   The rate of contingent interest payable in respect of any six-month period
will equal the greater of (i) a per annum rate equal to 5.0% of our estimated
per annum borrowing rate for senior non-convertible fixed-rate indebtedness
with a maturity date comparable to the CODES and (ii) 0.30% per annum, in each
case based on the outstanding principal amount of the CODES. Contingent
interest will be computed on the basis of a 360-day year comprised of twelve
30-day months.

   Upon determination that holders of CODES will be entitled to receive
contingent interest during any relevant six-month period, on or prior to the
start of the relevant six-month period, we will issue a press release and
publish information with respect to any contingent interest on our web site.

   We will pay contingent interest, if any, in the same manner as we will pay
interest described above under "--Interest," and your obligations in respect of
the payment of contingent interest in connection with the conversion of any
CODES will also be the same as described above under "--Interest."

Conversion Rights

  General

   You may convert any outstanding CODES (or portions of outstanding CODES)
into our common stock, initially at the conversion price of approximately
$30.49 per share (equal to a conversion rate of 32.7955 shares per $1,000
principal amount of CODES) under the circumstances summarized below. The
conversion price is, however, subject to adjustment as described below. We will
not issue fractional shares of common stock upon conversion of CODES. Instead,
we will pay a cash adjustment based upon the closing sale price of our common
stock on the business day immediately preceding the conversion date. You may
convert CODES only in denominations of $1,000 and whole multiples of $1,000.

   Holders may surrender CODES for conversion into our common stock prior to
the stated maturity only under the following circumstances:

   . during any conversion period, as described below, if the sale price of our
     common stock (as described above under "Interest Rate Adjustments") for at
     least 20 trading days in the 30 consecutive trading-day period ending on
     the first day of the conversion period was more than 120% of the
     conversion price on that thirtieth trading day;

   . during the five business-day period following any 10 consecutive
     trading-day period in which the average of the trading prices (as
     described below under "--Conversion Rights--Conversion Upon Satisfaction
     of Market Price Conditions") for the CODES for that 10 trading-day period
     was less than 105% of the average conversion value, as described below,
     for the CODES during that period;

   . during any period in which the credit rating assigned to the CODES by
     either Moody's or Standard & Poor's is lower than Ba2 or BB+,
     respectively, in which the credit rating assigned to the CODES is

                                      18



   suspended or withdrawn by either rating agency or in which neither rating
   agency continues to rate the CODES or provide ratings services or coverage
   to Apogent;

   . if we have called the CODES for redemption; or

   . upon the occurrence of the corporate transactions summarized below.

   If you have exercised your right to require us to repurchase your CODES as
described under "--Repurchase at Option of Holders," you may convert your CODES
into our common stock only if you withdraw your notice of exercise and convert
your CODES prior to the close of business on the business day immediately
preceding the applicable repurchase date.

  Conversion Upon Satisfaction of Market Price Conditions

   A holder may convert its CODES into our common stock during any conversion
period if the sale price of our common stock for at least 20 consecutive
trading days in the 30 trading-day period ending on the first day of the
conversion period exceeds 120% of the conversion price on that thirtieth
trading day. A conversion period will be the period from and including the
thirtieth trading day in a fiscal quarter to, but not including, the thirtieth
trading day in the immediately following fiscal quarter.

   A holder also may convert its CODES into our common stock during the five
business-day period following any 10 consecutive trading-day period in which
the average of the trading prices for the CODES for that 10 trading-day period
is less than 105% of the average conversion value for the CODES during that
period.

   "Conversion value" is equal to the product of the sale price for our common
stock on a given day multiplied by the then current conversion rate, which is
the number of shares of common stock into which each CODES is then convertible.

   The "trading price" of the CODES on any date of determination means the
average of the secondary market bid quotations per CODES obtained by us for
$10,000,000 principal amount of the CODES at approximately 3:30 p.m., New York
City time, on such determination date from three independent nationally
recognized securities dealers we select, provided that if at least three such
bids cannot reasonably be obtained by us, but two such bids are obtained, then
the average of the two bids shall be used, and if only one such bid can
reasonably be obtained by us, this one bid shall be used. If we cannot
reasonably obtain at least one bid for $10,000,000 principal amount of the
CODES from a nationally recognized securities dealer or in our reasonable
judgment, the bid quotations are not indicative of the secondary market value
of the CODES, then the trading price of the CODES will equal (a) the
then-applicable conversion rate of the CODES multiplied by (b) the sale price
of our common stock on such determination date.

  Conversion Upon Credit Rating Event

   A holder may convert any of its CODES during any period in which the credit
ratings assigned to the CODES by either Moody's or Standard & Poor's is lower
than Ba2 or BB+, respectively, or in which the credit rating assigned to the
CODES is suspended or withdrawn by either rating agencies or in which neither
rating agency continues to rate the CODES or provide ratings services or
coverage to Apogent.

  Conversion Upon Notice of Redemption

   A holder may surrender for conversion any CODES we call for redemption at
any time prior to the close of business on the day that is two business days
prior to the redemption date, even if the CODES are not otherwise convertible
at that time. If a holder already has delivered a purchase notice or a change
of control purchase notice with respect to a CODES, however, the holder may not
surrender that CODES for conversion until the holder has withdrawn the notice
in accordance with the indenture.

                                      19



  Conversion Upon Specified Corporate Transactions

   If:

   . we distribute to all holders of our common stock certain rights entitling
     them to purchase, for a period expiring within 60 days of the date of
     distribution, common stock at less than the trading price of the common
     stock at the time of the announcement of such distribution;

   . we elect to distribute to all holders of our common stock cash or other
     assets, debt securities or certain rights to purchase our securities,
     which distribution has a per share value exceeding 10% of the trading
     price of the common stock on the day preceding the declaration date for
     the distribution; or

   . a change of control as described under "Repurchase of CODES at the Option
     of Holders--Change of Control Put" occurs but holders of CODES do not have
     the right to require us to repurchase their CODES as a result of such
     change of control because either (1) the trading price of our common stock
     for a specified period prior to such change of control exceeds a specified
     level or (2) because the consideration received in such change of control
     consists of capital stock that is freely tradable and the CODES become
     convertible into that capital stock (each as more fully described under
     "Repurchase of CODES at the Option of Holders--Change of Control Put"),

then we must notify the holders of CODES at least 20 days prior to the
ex-dividend date for the distribution or within 30 days of the occurrence of
the change of control, as the case may be. Once we have given that notice,
holders may convert their CODES at any time until either (a) the earlier of
close of business on the business day prior to the ex-dividend date and our
announcement that the distribution will not take place, in the case of a
distribution, or (b) within 30 days of the change of control notice, in the
case of a change of control. In the case of a distribution, no adjustment to
the ability of a holder of CODES to convert will be made if the holder
participates or will participate in the distribution without conversion.

   In addition, if we are party to a consolidation, merger or binding share
exchange pursuant to which our common stock will be converted into cash,
securities or other property, a holder may convert CODES at any time from and
after the date which is 15 days prior to the anticipated effective date of the
transaction until 15 days after the effective date of the transaction. If we
are a party to a consolidation, merger or binding share exchange pursuant to
which our common stock is converted into cash, securities or other property,
then at the effective time of the transaction, the right to convert a CODES
into common stock will be changed into a right to convert the CODES into the
kind and amount of cash, securities or other property which the holder would
have received if the holder had converted such CODES immediately prior to the
transaction. If the transaction also constitutes a "change of control," as
defined below, the holder can require us to repurchase all or a portion of its
CODES as described under "--Repurchase at Option of Holders--Change of Control
Put."

  Conversion Procedures

   Except as provided below, if you convert your CODES into our common stock on
any day other than an interest payment date, you will not receive any interest
that has accrued on the CODES. By delivering to the holder the number of shares
issuable upon conversion, determined by dividing the principal amount of the
CODES being converted by the conversion price, together with a cash payment, if
any, in lieu of fractional shares, we will satisfy our obligation with respect
to the converted CODES. That is, accrued but unpaid interest (including
contingent interest) will be deemed to be paid in full rather than canceled,
extinguished or forfeited. If you convert after a record date for an interest
payment but prior to the corresponding interest payment date, you will receive
interest accrued and paid on such CODES on the interest payment date,
notwithstanding the conversion of such CODES prior to such interest payment
date, because you will have been the holder of record on the corresponding
record date. However, at the time of surrender of such CODES for conversion,
you must pay us an amount equal to the interest that has accrued and will be
paid on the CODES being converted on the interest payment date. The preceding
sentence does not apply, however, to a holder that converts, after a record
date for an interest payment date but prior to the corresponding interest
payment date, CODES that we call for redemption prior to such conversion on a
redemption date that is on or prior to the third business day after such
interest payment date.

                                      20



   You will not be required to pay any taxes or duties relating to the issuance
or delivery of our common stock if you exercise your conversion rights, but you
will be required to pay any tax or duty which may be payable relating to any
transfer involved in the issuance or delivery of the common stock in a name
other than your own. Certificates representing shares of common stock will be
issued or delivered only after all applicable taxes and duties, if any, payable
by you have been paid.

   To convert interests in a global CODES, you must deliver to DTC the
appropriate instruction form for conversion pursuant to DTC's conversion
program. To convert a definitive CODES, you must:

   . complete the conversion notice on the back of the CODES (or a facsimile
     thereof);

   . deliver the completed conversion notice and the CODES to be converted to
     the specified office of the conversion agent;

   . pay all funds required, if any, relating to interest on the CODES to be
     converted to which you are not entitled, as described in the second
     preceding paragraph; and

   . pay all taxes or duties, if any, as described in the preceding paragraph.

   The conversion date will be the date on which all of the foregoing
requirements have been satisfied. The CODES will be deemed to have been
converted immediately prior to the close of business on the conversion date. A
certificate for the number of shares of common stock into which the CODES are
converted (and cash in lieu of any fractional shares) will be delivered as soon
as practicable on or after the conversion date.

  Conversion Price Adjustments

   We will adjust the initial conversion price for certain events, including:

   . issuances of our common stock as a dividend or distribution on our common
     stock;

   . certain subdivisions and combinations of our common stock;

   . issuances to all holders of our common stock of certain rights or warrants
     to purchase our common stock (or securities convertible into our common
     stock) at less than (or having a conversion price per share less than) the
     then-current market price of our common stock;

   . distributions to all holders of our common stock of shares of our capital
     stock (other than our common stock), evidences of our indebtedness or
     assets including securities, but excluding:

     . the rights and warrants referred to in the third bullet point,

     . any dividends and distributions in connection with a reclassification,
       change, consolidation, merger, combination, sale or conveyance resulting
       in a change in the conversion consideration pursuant to the second
       succeeding paragraph, or

     . any dividends or distributions paid exclusively in cash;

   . distributions consisting exclusively of cash to all holders of our common
     stock to the extent that such distributions, combined together with:

     . all other such all-cash distributions made within the preceding 12
       months for which no adjustment has been made, plus

     . any cash and the fair market value of other consideration paid for in
       any tender offers by us or any of our subsidiaries for our common stock
       expiring within the preceding 12 months for which no adjustment has been
       made, exceed 10% of our market capitalization on the record date for
       such distribution; market capitalization is the product of the then
       current market price of our common stock times the number of shares of
       our common stock then outstanding; and

                                      21



   . purchases of our common stock pursuant to a tender offer made by us or any
     of our subsidiaries to the extent that the same involves an aggregate
     consideration that, together with:

     . any cash and the fair market value of any other consideration paid in
       any other tender offer by us or any of our subsidiaries for our common
       stock expiring within the 12 months preceding such tender offer for
       which no adjustment has been made, plus

     . the aggregate amount of any all-cash distributions referred to in the
       preceding bullet point to all holders of our common stock within 12
       months preceding the expiration of tender offer for which no adjustments
       have been made,

   exceeds 10% of our market capitalization on the expiration of such tender
offer.

   We will not make an adjustment in the conversion price unless such
adjustment would require a change of at least 1% in the conversion price then
in effect at such time. We will carry forward and take into account in any
subsequent adjustment any adjustment that would otherwise be required to be
made. Except as stated above, we will not adjust the conversion price for the
issuance of our common stock or any securities convertible into or exchangeable
for our common stock or carrying the right to purchase any of the foregoing.

   If we:

   . reclassify or change our common stock (other than changes resulting from a
     subdivision or combination); or

   . consolidate or combine with or merge into any person or sell or convey to
     another person all or substantially all of our property and assets,

and the holders of our common stock receive stock, other securities or other
property or assets (including cash or any combination thereof) with respect to
or in exchange for their common stock, the holders of the CODES may convert the
CODES into the consideration they would have received if they had converted
their CODES immediately prior to such reclassification, change, consolidation,
combination, merger, sale or conveyance. We may not become a party to any such
transaction unless its terms are consistent with the foregoing.

   In the event that we distribute shares of capital stock of a subsidiary of
ours, the conversion rate will be adjusted, if at all, based on the market
value of the subsidiary stock so distributed relative to the market value of
our common stock, in each case over a measurement period following the
distribution.

   In the event we elect to make a distribution described in the third or
fourth bullet points of the first paragraph of this subsection "--Conversion
Price Adjustments," which, in the case of the fourth bullet, has a per share
value equal to more than 10% of the sale price of our shares of common stock on
the day preceding the declaration date for the distribution, then, if the
distribution would also trigger a conversion right under ''--Conversion Upon
Specified Corporate Transactions," or if the CODES are otherwise convertible,
we will be required to give notice to the holders of CODES at least 20 days
prior to the ex-dividend date for the distribution and, upon the giving of
notice, the CODES may be surrendered for conversion at any time until the close
of business on the business day prior to the ex-dividend date or until we
announce that the distribution will not take place. No adjustment to the
conversion price or the ability of a holder of a CODES to convert will be made
if the holder will otherwise participate in the distribution without conversion
or in certain other cases.

   If a taxable distribution to holders of our common stock or other
transaction occurs which results in any adjustment of the conversion price, you
may, in certain circumstances, be deemed to have received a distribution
subject to U.S. income tax as a dividend. In certain other circumstances, the
absence of an adjustment may result in a taxable dividend to the holders of our
common stock. See "Certain United States Federal Income Tax Considerations."

   We may from time to time, to the extent permitted by law, reduce the
conversion price of the CODES by any amount for any period of at least 20 days.
In that case, we will give at least 15 days' notice of such

                                      22



decrease. We may make such reductions in the conversion price, in addition to
those set forth above, as our board of directors deems advisable to avoid or
diminish any income tax to holders of our common stock resulting from any
dividend or distribution of stock (or rights to acquire stock) or from any
event treated as such for income tax purposes.

Optional Redemption by Apogent

Optional Redemption

   We may not redeem the CODES in whole or in part at any time prior to October
20, 2004. At any time on or after October 20, 2004, we may redeem some or all
of the CODES on at least 20 but not more than 60 days' notice, at a redemption
price equal to 100% of the principal amount thereof. In addition, we will pay
interest (including contingent interest) on the CODES being redeemed, including
those CODES which are converted into our common stock after the date the notice
of the redemption is mailed and prior to the redemption date. This interest
will include interest accrued and unpaid to, but excluding, the redemption
date. If the redemption date is an interest payment date, we will pay the
interest to the holder of record on the corresponding record date, which may or
may not be the same person to whom we will pay the redemption price.

Partial Redemption

   If we do not redeem all of the CODES, the trustee will select the CODES to
be redeemed in principal amounts of $1,000 or whole multiples of $1,000 by lot
or on a pro rata basis. If any CODES are to be redeemed in part only, we will
issue a new CODES in principal amount equal to the unredeemed principal portion
thereof. If a portion of your CODES is selected for partial redemption and you
convert a portion of your CODES, the converted portion will be deemed to be
taken from the portion selected for redemption.

Repurchase at Option of Holders

  Optional Put

   On October 20, 2004 and on October 15, 2006, 2011 and 2016, a holder may
require us to repurchase all or a portion of its CODES for which the holder has
properly delivered and not withdrawn a written repurchase notice, subject to
certain additional conditions, at a repurchase price equal to 100% of the
principal amount of those CODES plus any accrued and unpaid interest, including
contingent interest, on those CODES to the repurchase date. Holders may submit
their CODES for repurchase to the paying agent at any time from the opening of
business on the date that is 20 business days prior to the repurchase date
until the close of business on the third business day prior to the repurchase
date.

   We will be required to give notice at least 20 business days prior to each
repurchase date to all holders at their addresses shown in the register of the
registrar and to beneficial owners as required by applicable law stating, among
other things, the procedures that holders must follow to require us to
repurchase their CODES as described below.

   The repurchase notice given by each holder electing to require us to
repurchase CODES must be received by the paying agent no later than the close
of business on the third business day prior to the repurchase date and must
state certain information, including:

   . the certificate numbers of the holder's CODES to be delivered for
     repurchase;

   . the portion of the principal amount of CODES to be repurchased, which must
     be $1,000 or an integral multiple of $1,000; and

   . that the CODES are to be repurchased by us pursuant to the applicable
     provision of the indenture.

                                      23



   A holder may withdraw any repurchase notice by delivering a written notice
of withdrawal to the paying agent prior to the close of business on the
repurchase date. The notice of withdrawal shall state certain information,
including:

   . the principal amount of CODES being withdrawn;

   . the certificate numbers of the CODES being withdrawn; and

   . the principal amount, if any, of the CODES that remain subject to the
     repurchase notice.

   In connection with any repurchase we will, to the extent applicable:

   . comply with the provisions of Rule 13e-4, Rule 14e-1 and any other tender
     offer rules under the Exchange Act which may then be applicable; and

   . file Schedule TO or any other required schedule under the Exchange Act.

   Our obligation to pay the repurchase price for CODES for which a repurchase
notice has been delivered and not validly withdrawn is conditioned upon the
holder delivering the CODES, together with necessary endorsements, to the
paying agent at any time after delivery of the repurchase notice. We will cause
the purchase price for the CODES to be paid promptly following the later of the
repurchase date or the time of delivery of the CODES, together with such
endorsements.

   If the paying agent holds money sufficient to pay the purchase price of the
CODES for which a repurchase notice has been given on the business day
following the repurchase date in accordance with the terms of the indenture,
then, immediately after the repurchase date, the CODES will cease to be
outstanding and interest on the CODES will cease to accrue, whether or not the
CODES are delivered to the paying agent. Thereafter, all other rights of the
holder shall terminate, other than the right to receive the purchase price upon
delivery of the CODES.

   Our ability to repurchase CODES for cash may be limited by restrictions on
our ability to obtain funds for such repurchase through dividends from its
subsidiaries and the terms of our then existing borrowing agreements.

  Change of Control Put

   If a change of control occurs, you will have the right to require us to
repurchase all or a portion of your CODES not previously called for redemption,
or any portion of those CODES that is equal to $1,000 or a whole multiple of
$1,000. The repurchase price is equal to 100% of the principal amount of the
CODES to be repurchased. We will also pay interest (including contingent
interest) accrued and unpaid to, but excluding, the repurchase date.
Notwithstanding the foregoing, you will not have a right to require us to
repurchase the CODES unless prior to that repurchase we have made any
applicable change of control offers required by our senior debt and have
purchased all senior debt validly tendered for payment in connection with such
change of control offers.

   Within 30 days after the occurrence of a change of control, we are required
to give you notice of the occurrence of the change of control and of your
resulting repurchase right. The repurchase date is 30 days after the date we
give notice of a change of control. To exercise the repurchase right, you must
deliver prior to the close of business on the business day immediately
preceding the repurchase date, written notice to the trustee of your exercise
of your repurchase right, together with the CODES with respect to which your
right is being exercised. You may withdraw this notice by delivering to the
paying agent a notice of withdrawal prior to the close of business on the
business day immediately preceding the repurchase date.

                                      24



   A "change of control" will be deemed to have occurred at such time after the
original issuance of the CODES when any of the following has occurred:

   . the acquisition by any person, including any syndicate or group deemed to
     be a "person" under Section 13(d)(3) of the Securities Exchange Act of
     1934, as amended, of beneficial ownership, directly or indirectly, through
     a purchase, merger or other acquisition transaction or series of purchase,
     merger or other acquisition transactions of shares of our capital stock
     entitling that person to exercise 50% or more of the total voting power of
     all shares of our capital stock entitled to vote generally in elections of
     directors, other than any acquisition by us, any of our subsidiaries or
     any of our employee benefit plans (except that such person shall be deemed
     to have beneficial ownership of all securities that such person has the
     right to acquire, whether such right is currently exercisable or is
     exercisable only upon the occurrence of a subsequent condition); or

   . the first day on which a majority of the members of the board of directors
     of Apogent are not continuing directors; or

   . the consolidation or merger of us with or into any other person, any
     merger of another person into us, or any conveyance, transfer, sale, lease
     or other disposition of all or substantially all of our properties and
     assets to another person, other than:

        (1) any transaction:

       .  that does not result in any reclassification, conversion, exchange or
          cancellation of outstanding shares of our capital stock; and

       .  pursuant to which holders of our capital stock immediately prior to
          such transaction have the entitlement to exercise, directly or
          indirectly, 50% or more of the total voting power of all shares of
          our capital stock entitled to vote generally in elections of
          directors of the continuing or surviving person immediately after
          giving effect to such issuance; and

        (2) any merger solely for the purpose of changing our jurisdiction of
          incorporation and resulting in a reclassification, conversion or
          exchange of outstanding shares of common stock solely into shares of
          common stock of the surviving entity.

   However, a change of control will be deemed not to have occurred if:

   . the closing sale price per share of our common stock for any five trading
     days within:

   . the period of 10 consecutive trading days ending immediately after the
     later of the change of control or the public announcement of the change of
     control, in the case of a change of control under the first bullet point
     above, or

   . the period of 10 consecutive trading days ending immediately before the
     change of control, in the case of a change of control under the second
     bullet point above,

equals or exceeds 110% of the conversion price of the CODES in effect on each
  such trading day; or

   . at least 90% of the consideration in the transaction or transactions
     constituting a change of control consists of shares of common stock traded
     or to be traded immediately following such change of control on a national
     securities exchange or the Nasdaq National Market and, as a result of the
     transaction or transactions, the CODES become convertible solely into such
     common stock (and any rights attached thereto).

   The beneficial owner shall be determined in accordance with Rule 13d-3
promulgated by the SEC under the Exchange Act. The term "person" includes any
syndicate or group which would be deemed to be a "person" under Section
13(d)(3) of the Exchange Act.

                                      25



   "Continuing directors" means, as of any date of determination, any member of
the board of directors of Apogent who:

   . was a member of the board of directors on October 10, 2001; or

   . was nominated for election or elected to the board of directors with the
     approval of two-thirds of the continuing directors who were members of the
     board at the time of a new director's nomination or election.

   Rule 13e-4 under the Exchange Act requires the dissemination of certain
information to security holders if an issuer tender offer occurs and may apply
if the repurchase option becomes available to holders of the CODES. We will
comply with this rule to the extent applicable at that time.

   We may, to the extent permitted by applicable law, at any time purchase the
CODES in the open market or by tender at any price or by private agreement. Any
CODES so purchased by us may, to the extent permitted by applicable law, be
reissued or resold or may be surrendered to the trustee for cancellation. Any
CODES surrendered to the trustee may not be reissued or resold and will be
canceled promptly.

   The foregoing provisions would not necessarily protect holders of the CODES
if highly leveraged or other transactions involving us occur that may adversely
affect holders.

   Our ability to repurchase CODES upon the occurrence of a change in control
is subject to important limitations. The occurrence of a change of control
could cause an event of default under, or be prohibited or limited by, the
terms of senior debt that we may incur in the future. Further, we cannot assure
you that we would have the financial resources, or would be able to arrange
financing, to pay the repurchase price for all the CODES that might be
delivered by holders of CODES seeking to exercise the repurchase right. Any
failure by us to repurchase the CODES when required following a change of
control would result in an event of default under the indenture. Any such
default may, in turn, cause a default under senior debt that we may incur in
the future.

Subsidiary Guarantees

   The guarantors have and will jointly and severally guarantee Apogent's
obligations under the CODES. The obligations of each guarantor under its
guarantee will be limited as necessary to prevent that guarantee from
constituting a fraudulent conveyance under the applicable laws. See "Risk
Factors--The subsidiary guarantees may raise fraudulent transfer issues, which
could impair the enforceability of the subsidiary guarantees."

   Guarantors may, without the consent of the holders of CODES, consolidate
with, merge with or into or transfer all or substantially all of their assets
to any other corporation organized under the laws of the United States or any
of its political subdivisions provided that:

   . at the time of such transaction, no event of default, and no event which,
     after notice or lapse of time, would become an event of default, shall
     have happened and be continuing; and

   . certain other conditions are met.

   The guarantee of a guarantor will be released:

   . in connection with any sale or other disposition of all or substantially
     all of the assets of that guarantor (including by way of merger or
     consolidation);

   . in connection with any sale of all of the capital stock of the guarantor;
     or

   . in connection with any termination of the obligations of that guarantor
     under the Credit Agreement.

                                      26



  Initial Guarantors

   The CODES were initially guaranteed by all of the U.S. companies that were
our subsidiaries on the date that the CODES were first issued, other than
subsidiaries that are inactive, in the process of liquidation or own less than
$1,000,000 in assets.

  Future Guarantors

   After the date the CODES were first issued and prior to the date upon which
the shelf registration statement of which this prospectus is a part was first
declared effective by the SEC and after the date upon which we are no longer
required to keep the shelf registration statement effective, we have or will
cause each newly created or acquired subsidiary which becomes a guarantor under
the Credit Agreement to promptly execute and deliver to the trustee a guarantee
pursuant to which such subsidiary will unconditionally guarantee, on a joint
and several basis, the full and prompt payment of the principal, interest
(including contingent interest), if any, and additional amounts with respect to
the CODES.

   During the period following the effective date of the shelf registration
statement and prior to the date upon which we are no longer required to keep
the shelf registration statement effective, we will cause each subsidiary
created or acquired by us and which becomes a guarantor under the Credit
Agreement to execute and deliver to the trustee on or before the next following
roll-up date a similar guarantee. As used herein, "roll-up date" means December
31, 2002 and the last day of any calendar month in which the consolidated net
sales or consolidated total assets of the companies which are then guarantors
of the CODES becomes less than 90% of the consolidated net sales or
consolidated total assets, as the case may be, of the entities which then
guarantee our obligations under the Credit Agreement.

Events of Default

   Each of the following will constitute an event of default under the
indenture:

      (1) our failure to convert CODES into shares of our common stock upon
   exercise of a holder's conversion right;

      (2) our failure to pay when due the principal of any of the CODES at
   maturity, upon redemption or exercise of a repurchase right or otherwise;

      (3) our failure to pay an installment of interest (including contingent
   interest) on any of the CODES for 30 days after the date when due;

      (4) our failure to pay additional amounts, if any, with respect to any of
   the CODES for 30 days after the date when due;

      (5) the failure by us or any guarantor to perform or observe any other
   term, covenant or agreement contained in the CODES or the indenture for a
   period of 60 days after written notice of such failure, requiring us to
   remedy the same, shall have been given to us by the trustee or to us and the
   trustee by the holders of at least 25% in aggregate principal amount of the
   CODES then outstanding;

      (6) a default under any indebtedness for money borrowed by us, any
   guarantor or any of our subsidiaries that is a "significant subsidiary" or
   any group of two or more subsidiaries that, taken as a whole, would
   constitute a significant subsidiary, the aggregate outstanding principal
   amount of which is in an amount in excess of $25 million, for a period of 30
   days after written notice to us by the trustee or to us and the trustee by
   holders of at least 25% in aggregate principal amount of the CODES then
   outstanding, which default:

       . is caused by a failure to pay when due principal or interest on such
         indebtedness by the end of the applicable grace period, if any, unless
         such indebtedness is discharged; or

       . results in the acceleration of such indebtedness, unless such
         acceleration is waived, cured, rescinded or annulled;

                                      27



      (7) certain events of bankruptcy, insolvency or reorganization with
   respect to us, any guarantor or any of our subsidiaries that is a
   significant subsidiary or any group of two or more subsidiaries that, taken
   as a whole, would constitute a significant subsidiary; and

      (8) unless the guarantee is released as described under "Subsidiary
   Guarantees," any guarantee shall be held in any judicial proceeding to be
   unenforceable or invalid.

   The indenture provides that the trustee shall, within 90 days of the
occurrence of a default, give to the registered holders of the CODES notice of
all uncured defaults known to it, but the trustee shall be protected in
withholding such notice if it, in good faith, determines that the withholding
of such notice is in the best interest of such registered holders, except in
the case of a default in the payment of the principal of or interest on any of
the CODES when due or in the payment of any redemption or repurchase obligation.

   If an event of default specified in clause (6) or (7) above occurs and is
continuing, then automatically the principal of all the CODES and the interest
(including contingent interest) thereon shall become immediately due and
payable. If an event of default shall occur and be continuing, other than with
respect to clause (6) or (7) above (the default not having been cured or waived
as provided under "--Modifications, Amendments and Meetings" below), the
trustee or the holders of at least 25% in aggregate principal amount of the
CODES then outstanding may declare the CODES due and payable at their principal
amount together with accrued interest, and thereupon the trustee may, at its
discretion, proceed to protect and enforce the rights of the holders of CODES
by appropriate judicial proceedings. Such declaration may be rescinded or
annulled either with the written consent of the holders of a majority in
aggregate principal amount of the CODES then outstanding or a majority in
aggregate principal amount of the CODES represented at a meeting at which a
quorum (as specified under "--Modifications, Amendments and Meetings" below) is
present, in each case upon the conditions provided in the indenture.

   The indenture contains a provision entitling the trustee, subject to the
duty of the trustee during default to act with the required standard of care,
to be indemnified by the holders of CODES before proceeding to exercise any
right or power under the indenture at the request of such holders. The
indenture provides that the holders of a majority in aggregate principal amount
of the CODES then outstanding through their written consent, or the holders of
a majority in aggregate principal amount of the CODES then outstanding
represented at a meeting at which a quorum is present by a written resolution,
may direct the time, method and place of conducting any proceeding for any
remedy available to the trustee or exercising any trust or power conferred upon
the trustee.

   We are required to furnish annually to the trustee a statement as to the
fulfillment of our obligations under the indenture.

Consolidation, Merger or Assumption

   We and any guarantor may, without the consent of the holders of CODES,
consolidate with, merge into or transfer all or substantially all of our assets
to any other corporation organized under the laws of the United States or any
of its political subdivisions provided that:

   . the surviving corporation assumes all our obligations under the indenture;
     and

   . at the time of such transaction, no event of default, and no event which,
     after notice or lapse of time, would become an event of default, shall
     have happened and be continuing; and

   . certain other conditions are met.

                                      28



Modifications, Amendments and Meetings

              Changes Requiring Approval of Each Affected Holder

   The indenture (including the terms and conditions of the CODES) cannot be
modified or amended without the written consent or the affirmative vote of the
holder of each CODES affected by such change to:

   . change the maturity of the principal of or any installment of interest on
     any CODES;

   . reduce the principal amount of, or any premium or interest on (including
     any payment of additional amounts), redemption price or purchase price
     (including change of control purchase price) of any CODES;

   . impair or adversely affect the conversion rights of any holder of CODES;

   . impair or adversely affect the rights of any holder of CODES with respect
     to the guarantees;

   . change the currency of payment of such CODES or interest thereon;

   . alter the manner of calculation or rate of accrual of interest, or
     contingent interest on any CODES or extend the payment of any such amount;

   . impair the right to institute suit for the enforcement of any payment on
     or with respect to any CODES;

   . modify our obligations to maintain an office or agency in New York City;

   . except as otherwise permitted or contemplated by provisions concerning
     corporate reorganizations, adversely affect the repurchase option of
     holders upon a change of control or the conversion rights of holders of
     the CODES;

   . modify the redemption provisions of the indenture in a manner adverse to
     the holders of CODES;

   . reduce the percentage in aggregate principal amount of CODES outstanding
     necessary to modify or amend the indenture or to waive any past default; or

   . reduce the percentage in aggregate principal amount of CODES outstanding
     required for the adoption of a resolution or the quorum required at any
     meeting of holders of CODES at which a resolution is adopted.

                      Changes Requiring Majority Approval

   The indenture (including the terms and conditions of the CODES) may be
modified or amended either:

   . with the written consent of the holders of at least a majority in
     aggregate principal amount of the CODES at the time outstanding; or

   . by the adoption of a resolution at a meeting of holders by at least a
     majority in aggregate principal amount of the CODES represented at such
     meeting.

                         Changes Requiring No Approval

   The indenture (including the terms and conditions of the CODES) may be
modified or amended by us and the trustee, without the consent of the holder of
any CODES, for the purposes of, among other things:

   . adding to our covenants for the benefit of the holders of CODES;

   . surrendering any right or power conferred upon us;

   . providing for conversion rights of holders of CODES if any
     reclassification or change of our common stock or any consolidation,
     merger or sale of all or substantially all of our assets occurs;

                                      29



   . providing for the assumption of our obligations to the holders of CODES in
     the case of a merger, consolidation, conveyance, transfer or lease;

   . reducing the conversion price, provided that the reduction will not
     adversely affect the interests of the holders of CODES (after taking into
     account tax and other consequences of such reduction);

   . complying with the requirements of the SEC in order to effect or maintain
     the qualification of the indenture under the Trust Indenture Act of 1939,
     as amended;

   . making any changes or modifications necessary in connection with the
     registration of the CODES under the Securities Act as contemplated in the
     registration rights agreement; provided that such change or modification
     does not, in the good faith opinion of our board of directors and the
     trustee, adversely affect the interests of the holders of CODES in any
     material respect;

   . curing any ambiguity or correcting or supplementing any defective
     provision contained in the indenture; provided that such modification or
     amendment does not, in the good faith opinion of our board of directors
     and the trustee, adversely affect the interests of the holders of CODES in
     any material respect;

   . adding guarantees with respect to the CODES; or

   . adding or modifying any other provisions with respect to matters or
     questions arising under the indenture which we and the trustee may deem
     necessary or desirable and which will not adversely affect the interests
     of the holders of CODES.

                                   Meetings

   The indenture contains provisions for convening meetings of the holders of
CODES to consider matters affecting their interests.

                                    Quorum

   The quorum at any meeting called to adopt a resolution will be persons
holding or representing a majority in aggregate principal amount of the CODES
at the time outstanding and, at any reconvened meeting adjourned for lack of a
quorum, 25% of the aggregate principal amount.

Satisfaction and Discharge

   We may satisfy and discharge our obligations under the indenture while CODES
remain outstanding, subject to certain conditions, if:

   . all outstanding CODES will become due and payable at their scheduled
     maturity within one year; or

   . all outstanding CODES are scheduled for redemption within one year,

and, in either case, we have deposited with the trustee an amount sufficient to
pay and discharge all outstanding CODES on the date of their scheduled maturity
or the scheduled date of redemption.

Governing Law

   The indenture and the CODES are governed by, and will be construed in
accordance with, the law of the State of New York, without regard to conflicts
of law principles thereof.

Information Concerning the Trustee

   The Bank of New York, as trustee under the indenture, has been appointed by
us as paying agent, conversion agent, registrar and custodian with regard to
the CODES. EquiServe Trust Company, N.A. is the

                                      30



transfer agent and registrar for our common stock. The trustee or its
affiliates may from time to time in the future provide banking and other
services to us in the ordinary course of their business.

Calculations in Respect of CODES

   We are responsible for making many of the calculations called for under the
CODES. These calculations include, but are not limited to, determination of the
trading prices of the CODES and of our common stock and amounts of contingent
interest payments, if any, payable on the CODES. We will make all these
calculations in good faith and, absent manifest error, our calculations will be
final and binding on holders of CODES. We will provide a schedule of our
calculations to the trustee, and the trustee is entitled to rely conclusively
on the accuracy of our calculations without independent verification.

Registration Rights

   In connection with our initial sales of the CODES in October, 2001, we and
the guarantors entered into a registration rights agreement with the initial
purchasers for the benefit of the holders of the CODES. Pursuant to the
agreement, we agreed that we would, at our expense:

   . file with the SEC not later than 90 days after the earliest date of
     original issuance of any of the CODES a registration statement on such
     form as we deem appropriate covering resales by holders of all CODES and
     the common stock issuable upon conversion of the CODES;

   . file with the SEC not later than each roll-up date a registration
     statement on such form as we deem appropriate reflecting the guarantees by
     the entities who became guarantors on the roll-up date and covering
     resales by the holders of all CODES and the common stock issuable upon
     conversion of the CODES;

   . cause each such registration statement to become effective as promptly as
     is practicable, but in no event later than 180 days after the earliest
     date of original issuance of any of the CODES, in the case of the initial
     shelf registration statement, or within 30 days after the applicable
     roll-up date, in the case of any other shelf registration statement; and

   . keep each registration statement effective until the earliest of:

     . two years after the last date of original issuance of any of the CODES;

     . the date when the holders of the CODES and the common stock issuable
       upon conversion of the CODES are able to sell all such securities
       immediately without restriction pursuant to the volume limitation
       provisions of Rule 144 under the Securities Act; and

     . the date when all of the CODES and the common stock into which the CODES
       are convertible that are owned by the holders who complete and deliver
       in a timely manner the selling securityholder election and questionnaire
       described below are registered under such shelf registration statements
       and disposed of in accordance with the shelf registration statements.

We have now satisfied the first of the requirements listed above. The
registration statement of which this prospectus is a part is the initial shelf
registration statement required by the registration rights agreement.

   Pursuant to the registration rights agreement, we were required to mail a
notice of each registration statement and a form of selling securityholder
election and questionnaire to each holder of the CODES to obtain certain
information regarding the holder for inclusion in this prospectus. The
information included herein under "Selling Holders and Plan of Distribution" is
based on the information provided to us in those questionnaires.

                                      31



   Pursuant to the registration rights agreement, we are required to:

   . provide to each holder for whom the shelf registration statement was filed
     copies of the prospectus that is a part of the shelf registration
     statement;

   . notify each such holder when the shelf registration statement has become
     effective;

   . notify each such holder of the commencement of any suspension period; and

   . take certain other actions as are required to permit unrestricted resales
     of the CODES and the common stock issuable upon conversion of the CODES.

   Each holder who sells securities pursuant to the shelf registration
statements generally will be:

   . required to be named as a selling stockholder in the related prospectus;

   . required to deliver a prospectus to purchasers;

   . subject to certain of the civil liability provisions under the Securities
     Act in connection with the holder's sales; and

   . bound by the provisions of the registration rights agreement which are
     applicable to the holder (including certain indemnification rights and
     obligations).

   Each holder must notify us not later than three business days prior to any
proposed sale by that holder pursuant to the shelf registration statements.
This notice will be effective for five business days. A suggested form of the
required notice is attached as Annex A to this prospectus. Except as otherwise
provided herein, we may suspend the holder's use of the prospectus for a
reasonable period not to exceed 45 days in any 90-day period, and not to exceed
an aggregate of 90 days in any 360-day period, if:

   . the prospectus would, in our judgment, contain a material misstatement or
     omission as a result of an event that has occurred and is continuing; and

   . we reasonably determine that the disclosure of this material non-public
     information would have a material adverse effect on us and our
     subsidiaries taken as a whole.

However, if the disclosure relates to a previously undisclosed proposed or
pending material business transaction, the disclosure of which would impede our
ability to consummate such transaction, we may extend the suspension period
from 45 days to 60 days. Each holder, by its acceptance of a CODES, agrees to
hold any communication by us in response to a notice of a proposed sale in
confidence.

   Upon the initial sale of CODES or common stock issued upon conversion of the
CODES pursuant to this prospectus, each selling holder will be required to
deliver a notice of such sale to the trustee and us. The notice will, among
other things:

   . identify the sale as a transfer pursuant to the shelf registration
     statements;

   . certify that the prospectus delivery requirements, if any, of the
     Securities Act have been complied with; and

   . certify that the selling holder and the aggregate principal amount of
     CODES or number of shares, as the case may be, owned by such holder are
     identified in the related prospectus in accordance with the applicable
     rules and regulations under the Securities Act.

A suggested form of the required notice is attached as Annex B to this
  prospectus.

   Under the registration rights agreement, if,

   . we have not filed a shelf registration statement with the SEC prior to or
     on the 90th day following the earliest date of original issuance of any of
     the CODES, in the case of the initial shelf registration

                                      32



     statement, or on or prior to the applicable roll-up date, in the case of
     each subsequent shelf registration statement;

   . the initial shelf registration statement has not been declared effective
     prior to or on the 180th day following the earliest date of original
     issuance of any of the CODES or any subsequent shelf registration
     statement has not been declared effective within 30 days of the applicable
     roll-up date; or

   . any registration statement ceases to be effective or fails to be usable
     and (1) we do not cure the registration statement within five business
     days by a post-effective amendment or a report filed pursuant to the
     Exchange Act or (2) if applicable, we do not terminate the suspension
     period, described in the preceding paragraph, by the 45th or 60th day, as
     the case may be, or the suspension periods exceed an aggregate of 90 days
     in any 360 day period (each, a "registration default"),

then additional amounts will accrue on the CODES, from and including the day
following the registration default to but excluding the day on which the
registration default has been cured. Additional amounts will be paid
semiannually in arrears, with the first semiannual payment due on the first
interest payment date, as applicable, following the date on which such
additional amounts begin to accrue, and will accrue at a rate per year equal to:

   . an additional 0.25% of the principal amount to and including the 90th day
     following such registration default; and

   . an additional 0.50% of the principal amount from and after the 91st day
     following such registration default.

In no event will additional amounts accrue at a rate per year exceeding 0.50%.
If a holder has converted some or all of its CODES into common stock, the
holder will be entitled to receive equivalent amounts based on the principal
amount of the CODES converted. A holder will not be entitled to additional
amounts unless it has provided all information requested by the questionnaire
prior to the deadline.

Form, Denomination and Registration

   Denomination and Registration.  The CODES have been issued in fully
registered form, without coupons, in denominations of $1,000 principal amount
and whole multiples of $1,000.

   Global Securities: Book-Entry Form.  Except as provided below, CODES will be
evidenced by one or more global securities deposited with the trustee as
custodian for DTC, and registered in the name of Cede & Co. as DTC's nominee.

   Record ownership of the global securities may be transferred, in whole or in
part, only to another nominee of DTC or to a successor of DTC or its nominee,
except as set forth below. A holder may hold its interests in the global CODES
directly through DTC if the holder is a participant in DTC, or indirectly
through organizations which are direct DTC participants if such holder is not a
participant in DTC. Transfers between direct DTC participants will be effected
in the ordinary way in accordance with DTC's rules and will be settled in
same-day funds. Holders may also beneficially own interests in the global CODES
held by DTC through certain banks, brokers, dealers, trust companies and other
parties that clear through or maintain a custodial relationship with a direct
DTC participant, either directly or indirectly.

   So long as Cede & Co., as nominee of DTC, is the registered owner of the
global securities, Cede & Co. for all purposes will be considered the sole
holder of the global securities. Except as provided below, owners of beneficial
interests in the global securities:

   . will not be entitled to have certificates registered in their names;

   . will not receive or be entitled to receive physical delivery of
     certificates in definitive form; and

                                      33



   . will not be considered holders of the global securities.

The laws of some states require that certain persons take physical delivery of
securities in definitive form. Consequently, the ability of an owner of a
beneficial interest in a global CODES to transfer the beneficial interest in
the global CODES to such persons may be limited.

   We will wire, through the facilities of the trustee, payments of principal
and interest payments on the global securities to Cede & Co., the nominee of
DTC, as the registered owner of the global securities. None of Apogent, the
trustee and any paying agent will have any responsibility or be liable for
paying amounts due on the global securities to owners of beneficial interests
in the global securities.

   It is DTC's current practice, upon receipt of any payment of principal of
and interest on the global securities, to credit participants' accounts on the
payment date in amounts proportionate to their respective beneficial interests
in the CODES represented by the global securities, as shown on the records of
DTC, unless DTC believes that it will not receive payment on the payment date.
Payments by DTC participants to owners of beneficial interests in CODES
represented by the global securities held through DTC participants will be the
responsibility of DTC participants, as is now the case with securities held for
the accounts of customers registered in "street name."

   Because of time zone differences, the securities accounts of a Euroclear
System ("Euroclear") or Clearstream Bank, societe anonyme ("Clearstream")
participant purchasing an interest in a global CODES from a participant in DTC
will be credited, and any such crediting will be reported to the relevant
Euroclear or Clearstream participant, during the securities settlement
processing day (which must be a business day for Euroclear or Clearstream)
immediately following the settlement date of DTC. Cash received in Euroclear or
Clearstream as a result of sales of interests in a global CODES by or through a
Euroclear or Clearstream participant to a participant in DTC will be received
with value on the settlement date of DTC but will be available in the relevant
Euroclear or Clearstream cash account only as of the business day for Euroclear
or Clearstream following DTC's settlement date.

   If you would like to convert your CODES into common stock pursuant to the
terms of the CODES, you should contact your broker or other direct or indirect
DTC participant to obtain information on procedures, including proper forms and
cut-off times, for submitting those requests.

   Because DTC can only act on behalf of DTC participants, who in turn act on
behalf of indirect DTC participants and other banks, your ability to pledge
your interest in the CODES represented by global securities to persons or
entities that do not participate in the DTC system, or otherwise take actions
in respect of such interest, may be affected by the lack of a physical
certificate.

   Neither Apogent nor the trustee (nor any registrar, paying agent or
conversion agent under the indenture) will have any responsibility for the
performance by DTC or direct or indirect DTC participants of their obligations
under the rules and procedures governing their operations. DTC has advised us
that it will take any action permitted to be taken by a holder of CODES,
including, without limitation, the presentation of CODES for conversion as
described below, only at the direction of one or more direct DTC participants
to whose account with DTC interests in the global securities are credited and
only for the principal amount of the CODES for which directions have been given.

   DTC has advised us as follows: DTC is a limited purpose trust company
organized under the laws of the State of New York, a member of the Federal
Reserve System, a "clearing corporation" within the meaning of the Uniform
Commercial Code and a "clearing agency" registered pursuant to the provisions
of Section 17A of the Securities Exchange Act of 1934, as amended. DTC was
created to hold securities for DTC participants and to facilitate the clearance
and settlement of securities transactions between DTC participants through
electronic book-entry changes to the accounts of its participants, thereby
eliminating the need for physical movement of certificates. Participants
include securities brokers and dealers, banks, trust companies and

                                      34



clearing corporations and may include certain other organizations, such as the
initial purchasers of the CODES. Certain DTC participants or their
representatives, together with other entities, own DTC. Indirect access to the
DTC system is available to others such as banks, brokers, dealers and trust
companies that clear through, or maintain a custodial relationship with, a
participant, either directly or indirectly.

   Although DTC has agreed to the foregoing procedures in order to facilitate
transfers of interests in the global securities among DTC participants, it is
under no obligation to perform or continue to perform such procedures, and such
procedures may be discontinued at any time. If DTC is at any time unwilling or
unable to continue as depositary and a successor depositary is not appointed by
us within 90 days, we will cause CODES to be issued in definitive form in
exchange for the global securities. None of Apogent, the trustee or any of
their respective agents will have any responsibility for the performance by
DTC, direct or indirect DTC participants of their obligations under the rules
and procedures governing their operations, including maintaining, supervising
or reviewing the records relating to, or payments made on account of,
beneficial ownership interests in global securities.

   According to DTC, the foregoing information with respect to DTC has been
provided to its participants and other members of the financial community for
informational purposes only and is not intended to serve as a representation,
warranty or contract modification of any kind.

   Definitive CODES.  Certain holders may request that their CODES be issued in
definitive, registered form, and may request at any time that their interests
in a global CODES be exchanged for a CODES in definitive form. Definitive CODES
may also be issued in exchange for CODES represented by the global securities
if we do not appoint a successor depositary as set forth above under "--Global
Securities: Book-Entry Form" or in certain other circumstances set forth in the
indenture.

   Restrictions on Transfer.  The CODES are subject to certain restrictions on
transfer set forth on the CODES and in the indenture.

                                      35



            CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

   The following is a summary of the material United States federal income tax
consequences, as of the date of this prospectus, of the purchase, ownership,
and disposition of CODES, and where noted, the common stock into which the
CODES may be converted. Except where noted, this summary deals only with a
CODES held as a capital asset by a United States holder who purchases the CODES
subsequent to their original issue, and it does not deal with special
situations. For example, this summary does not address:

   . tax consequences to holders who may be subject to special tax treatment,
     such as dealers in securities or currencies, traders in securities that
     elect to use the mark-to-market method of accounting for their securities,
     financial institutions, regulated investment companies, real estate
     investment trusts, tax-exempt entities or insurance companies;

   . tax consequences to persons holding CODES as part of a hedging,
     constructive sale or conversion, straddle or other risk reducing
     transaction;

   . tax consequences to holders of CODES whose "functional currency" is not
     the U.S. dollar;

   . except where noted, the United States federal estate, gift or alternative
     minimum tax consequences, if any, to holders of CODES; or

   . any state, local or foreign tax consequences.

   The discussion below is based upon the provisions of the Internal Revenue
Code of 1986, as amended (the "Code"), and regulations, rulings and judicial
decisions as of the date of this prospectus. Those authorities may be changed,
perhaps retroactively, so as to result in United States federal income tax
consequences different from those discussed below.

   If a partnership holds the CODES, the tax treatment of a partner will
generally depend upon the status of the partner and the activities of the
partnership. If you are a partner of a partnership holding the CODES, you
should consult your own tax advisors.

   No statutory, administrative or judicial authority directly addresses the
treatment of the CODES or instruments similar to the CODES for United States
federal income tax purposes. No rulings have been sought or are expected to be
sought from the Internal Revenue Service (the "IRS") with respect to any of the
United States federal income tax consequences discussed below, and no assurance
can be given that the IRS will not take contrary positions. As a result, no
assurance can be given that the IRS will agree with the tax characterizations
and the tax consequences described below.

   If you are considering the purchase of CODES, you should consult your own
tax advisors concerning the federal income tax consequences in light of your
particular situation and any consequences arising under the laws of any other
taxing jurisdiction.

Classification of the CODES

   Under the indenture governing the CODES, we and each holder of the CODES
agree, for United States federal income tax purposes, to treat the CODES as
indebtedness that is subject to the regulations governing contingent payment
debt instruments (the "Contingent Debt Regulations") in the manner described
below. The remainder of this discussion assumes that the CODES will be so
treated and does not address any possible differing treatments of the CODES.
However, the application of the Contingent Debt Regulations to instruments such
as the CODES is uncertain in several respects, and no rulings have been sought
from the IRS with respect to any of the tax consequences discussed below.
Accordingly, no assurance can be given that the IRS or a court will agree with
the treatment described herein. Any differing treatment could affect the
amount, timing and character of income, gain or loss in respect of an
investment in the CODES. In particular, a holder might be required to accrue
original issue discount at a lower rate, might not recognize income, gain or
loss upon conversion of the

                                      36



CODES to common stock, and might recognize capital gain or loss upon a taxable
disposition of its CODES. Holders should consult their tax advisors concerning
the tax treatment of holding the CODES.

United States Holders

   The following discussion is a summary of certain United States federal
income tax consequences that will apply to you if you are a United States
holder of CODES.

   For purposes of this discussion, a United States holder is a beneficial
owner of a CODES who or which is:

   . a citizen or resident of the United States;

   . a corporation or partnership created or organized in or under the laws of
     the United States or any political subdivision of the United States;

   . an estate the income of which is subject to United States federal income
     taxation regardless of its source; or

   . a trust (1) that is subject to the primary supervision of a court within
     the United States and the control of one or more United States persons as
     defined in Section 7701(a)(30) of the Code or (2) that has a valid
     election in effect under applicable Treasury regulations to be treated as
     a United States person.

  Accrual of interest

   Under the Contingent Debt Regulations, you will be required to accrue
interest income on the CODES, in the amounts described below, regardless of
whether you use the cash or accrual method of tax accounting. Accordingly, you
will be required to include interest in taxable income in each year in excess
of the accruals on the CODES for non-tax purposes and in excess of any
contingent interest payments actually received in that year.

   You will be required to accrue an amount of original issue discount for
United States federal income tax purposes, for each accrual period prior to and
including the maturity date of the CODES that equals:

   . the product of (i) the adjusted issue price (as defined below) of the
     CODES as of the beginning of the accrual period; and (ii) the comparable
     yield to maturity (as defined below) of the CODES, adjusted for the length
     of the accrual period;

   . divided by the number of days in the accrual period; and

   . multiplied by the number of days during the accrual period that you held
     the CODES.

   The original issue price of a CODES was the first price at which a
substantial amount of the CODES were sold to the public, excluding bond houses,
brokers or similar persons or organizations acting in the capacity of
underwriters, placement agents or wholesalers and was $1,000 per $1,000 of
initial principal amount. The adjusted issue price of a CODES will be its
original issue price increased by any original issue discount previously
accrued, determined without regard to any adjustments to original issue
discount accruals described below, and decreased by the projected amounts of
any contingent payments previously made with respect to the CODES.

   Under the Contingent Debt Regulations, you will be required to include
original issue discount in income each year, regardless of your usual method of
tax accounting, based on the comparable yield of the CODES which we are
required to determine. We have determined the comparable yield of the CODES
based on the rate, as of the initial issue date, at which we would issue a
fixed rate nonconvertible debt instrument with no contingent payments but with
terms and conditions similar to the CODES, including the level of
subordination, term, timing of payments and general market conditions.
Accordingly, we have determined that the comparable yield is an annual rate of
5.90%, compounded semi-annually. The methodology for determining the comparable
yield of a convertible debt instrument such as the CODES is not entirely clear
under the Contingent Debt

                                      37



Regulations. If our determination of the comparable yield were successfully
challenged by the IRS, the redetermined yield could be materially different
than the comparable yield determined by us.

   A United States holder that purchases CODES in the secondary market will be
required to accrue interest income on the CODES in the same manner as a United
States holder that purchased CODES in the initial offering. In addition, if a
United States holder purchases CODES in the secondary market for an amount that
differs from the adjusted issue price of the CODES at the time of purchase,
such United States holder must reasonably determine whether the difference
between the purchase price of the CODES and the adjusted issue price of the
CODES is attributable to a change in interest rates since the CODES were
issued, a change in expectations as to the contingent amounts potentially
payable in respect of the CODES, or both, and allocate the difference
accordingly. To the extent that the difference is attributable to a change in
interest rates, it must be allocated to the daily portions of interest over the
remaining term of the CODES. To the extent that the difference is attributable
to a change in expectations as to the contingent amounts potentially payable in
respect of the CODES, it must be reasonably allocated to the remaining
projected contingent payments under the CODES. The amount of the difference
allocated to a daily portion of interest or to a projected payment is treated
as an adjustment on the day the daily portion accrues or the payment is made,
respectively. If the purchase price of the CODES was greater than the adjusted
issue price, an adjustment will be a "negative adjustment," and if the purchase
price was less than the adjusted issue price, an adjustment will be a "positive
adjustment." Any such negative or positive adjustment will decrease or
increase, respectively, the United States holder's adjusted tax basis in the
CODES.

   Certain United States holders will receive Forms 1099-OID that report
interest accruals on their CODES. Those forms will not reflect the effect of
any positive or negative adjustments resulting from the United States holder's
purchase of CODES in the secondary market at a price different from adjusted
issue price of the CODES on the date of purchase. United States holders are
urged to consult their tax advisors as to whether, and how, such adjustments
should be taken into account in determining their interest accruals with regard
to the CODES.

   We are required to furnish annually to you the comparable yield and, solely
for United States federal income tax purposes, a projected payment schedule
that includes the actual interest payments, if any, on the CODES and estimates
the amount and timing of contingent interest payments and payment upon maturity
on the CODES taking into account the fair market value of the common stock that
might be paid upon a conversion of the CODES. You may obtain the projected
payment schedule by submitting a written request for it to us at the address
set forth in "About This Prospectus." By purchasing the CODES, you agree in the
indenture to be bound by our determination of the comparable yield and
projected payment schedule. For United States federal income tax purposes, you
must use the comparable yield and the schedule of projected payments in
determining your original issue discount accruals, and the adjustments thereto
described below, in respect of the CODES.

   The comparable yield and the projected payment schedule are not provided for
any purpose other than the determination of your original issue discount and
adjustments thereof in respect of the CODES and do not constitute a projection
or representation regarding the actual amount of the payments on a CODES.

  Adjustments to interest accruals on the CODES

   If the actual contingent payments made on the CODES differ from the
projected contingent payments, adjustments will be made to taxable income for
the difference for the year in which the contingent payment is made. If, during
any taxable year, you receive actual payments with respect to the CODES for
that taxable year that in an aggregate exceed the total amount of projected
payments for the taxable year, you will incur a net positive adjustment equal
to the amount of such excess. Such net positive adjustment will be treated as
additional original issue discount in such taxable year. For these purposes,
the payments in a taxable year include the fair market value of property
received in that year. If you receive in a taxable year actual payments with
respect to

                                      38



the CODES for that taxable year that in the aggregate are less than the amount
of projected payments for that taxable year, you will incur a net negative
adjustment equal to the amount of such deficit. A net negative adjustment will:

   . first, reduce the amount of original issue discount required to be accrued
     in the current year;

   . second, any negative adjustments that exceed the amount of original issue
     discount accrued in the current year will be treated as ordinary loss to
     the extent of your total prior original issue discount inclusions with
     respect to the CODES (which includes any prior net positive adjustments),
     reduced to the extent such original issue discount was offset by prior net
     negative adjustments; and

   . third, any excess negative adjustments will be treated as a regular
     adjustment in the succeeding taxable year, and, if not used by the time
     the CODES is sold or matures, is treated as a reduction in the amount
     realized on sale, exchange or retirement.

   A United States holder that purchases CODES in the secondary market will be
required to make the adjustments to interest accruals described herein in the
same manner as a U.S. holder that purchased the CODES in the initial offering.

  Sale, exchange, conversion or redemption

   Upon the sale, exchange, conversion, repurchase or redemption of a CODES,
you will recognize taxable gain or loss. As a holder of a CODES, you agree that
under the Contingent Debt Regulations, we will treat the fair market value of
our stock that you receive on conversion as a contingent payment. The amount of
taxable gain or loss on a sale, exchange, conversion, repurchase or redemption
will equal the difference between: (a) the amount of cash plus the fair market
of any other property you receive including the fair market value of any shares
of common stock you receive, and (b) your adjusted tax basis in the CODES. Your
adjusted basis in a CODES generally will equal your original purchase price for
the CODES, increased by any original issue discount previously accrued
(determined without regard to any net positive or net negative adjustments to
interest accruals relating to adjustments made when actual contingent payments
made on the CODES differ from projected contingent payments, as described above
under "Accruals of interest") and decreased by the projected amount of any
payments previously scheduled to be made on the CODES. In the case of a United
States holder that purchased the CODES in the secondary market for an amount
that differs from the adjusted issue price of the CODES at the time of
purchase, any negative or positive adjustment relating to the allocation of
such difference as described above under "Accruals of Interest" will decrease
or increase, respectively, the United States holder's adjusted tax basis in the
CODES.

   Gain recognized on the sale, exchange, conversion or redemption of a CODES
will generally be treated as ordinary interest income; any loss will be
ordinary loss to the extent your total interest income inclusions (including
any positive adjustments attributable to variances between actual contingent
payments made on the CODES and projected contingent payments, as described
above under "Adjustments to interest accruals on the CODES," and any positive
adjustments attributable to differences between adjusted issue price and
acquisition price in the case of United States holders that purchased CODES in
the secondary market, as described above under "Accruals of interest" ) exceed
the total net negative adjustments (including any adjustments attributable to
variances between actual contingent payments made on the CODES and projected
contingent payments, as described above under "Adjustments to interest accruals
on the CODES," and any adjustments attributable to differences between adjusted
issue price and acquisition price in the case of United States holders that
purchased CODES in the secondary market, as described above under "Accruals of
interest") on a CODES, and thereafter, capital loss (which will be long-term if
a CODES is held for more than one year). The deductibility of net capital
losses is subject to limitations.

   Your tax basis in the common stock received upon conversion of a CODES will
equal the then current fair market value of such common stock. Your holding
period for our common stock received will commence on the day of conversion.

                                      39



   Given the uncertain tax treatment of instruments such as CODES, you should
consult your tax advisers concerning the tax treatment on conversion of a CODES
and the ownership of the common stock.

  Constructive distributions

   The conversion price of the CODES will be adjusted in certain circumstances.
Under section 305(c) of the Code, adjustments (or failures to make adjustments)
that have the effect of increasing your proportionate interest in our assets or
earnings may in some circumstances result in a deemed distribution to you. Any
deemed distributions will be taxable as a dividend, return of capital, or
capital gain in accordance with the earnings and profits rules under the Code.

Non-United States Holders

   The following is a summary of the United States federal tax consequences
that will apply to you if you are a non-United States holder of CODES or shares
of common stock. The term "non-United States holder" means a beneficial owner
of a CODES that is not a United States holder.

   Special rules may apply to certain non-United States holders such as
"controlled foreign corporations," "passive foreign investment companies,"
"foreign personal holding companies," corporations that accumulate earnings to
avoid federal income tax or, in certain circumstances, United States
expatriates. Such non-United States holders should consult their own tax
advisors to determine the United States federal, state, local and other tax
consequences that may be relevant to them.

  Payments with respect to the CODES

   The 30% United States federal withholding tax will not apply to any payment
to you of principal or interest (including amounts taken into income under the
accrual rules described above under "-- United States Holders" and a payment of
common stock pursuant to a conversion) on a CODES, provided that:

   . you do not actually or constructively own 10% or more of the total
     combined voting power of all classes of our stock that are entitled to
     vote within the meaning of Section 871(h)(3) of the Code;

   . you are not a controlled foreign corporation that is related to us through
     stock ownership;

   . you are not a bank whose receipt of interest (including original issue
     discount) on a CODES is described in Section 881(c)(3)(A) of the Code;

   . our common stock continues to be actively traded within the meaning of
     Section 871(h)(4)(C)(v)(1) of the Code and we are not a "United States
     real property holding corporation;" and

   . (a) you provide your name and address, and certify, under penalties of
     perjury, that you are not a United States person (which certification may
     be made on an IRS Form W-8BEN (or successor form)) or (b) you hold your
     CODES through certain foreign intermediaries and you satisfy the
     certification requirements of applicable Treasury regulations. Special
     certification rules apply to holders that are pass-through entities.

   If you cannot satisfy the requirements described above, payments of interest
(including original issue discount) will be subject to the 30% United States
federal withholding tax, unless you provide us with a properly executed (1) IRS
Form W-8BEN (or successor form) claiming an exemption from or reduction in
withholding under the benefit of an applicable tax treaty or (2) IRS Form
W-8ECI (or successor form) stating that interest (including original issue
discount) paid on the CODES is not subject to withholding tax because it is
effectively connected with your conduct of a trade or business in the United
States.

   If you are engaged in a trade or business in the United States and interest
(including original issue discount) on a CODES is effectively connected with
the conduct of that trade or business, you will be subject to United States
federal income tax on that interest on a net income basis (although exempt from
the 30% withholding tax) in the same manner as if you were a United States
person as defined under the Code, subject to any modification

                                      40



provided under an applicable income tax treaty. In addition, if you are a
foreign corporation, you may be subject to a "branch profits tax" equal to 30%
(or lower applicable treaty rate) of your earnings and profits for the taxable
year, subject to adjustments, that are effectively connected with your conduct
of a trade or business in the United States. For this purpose, interest
(including original issue discount) will be included in the earnings and
profits of such foreign corporation.

   The 30% United States federal withholding tax may not be avoided by
satisfying the conditions in the five bullet points set out above to the extent
interest on the CODES is adjusted to equal the adjusted interest rate, as
described above under "Description of the CODES--Interest Rate Adjustment." In
such a case, the interest would likely be described in section 871(h)(4)(A) of
the Code and therefore would not be eligible for the exemption from withholding
generally provided under section 871(h) of the Code, to which the five bullet
points relate. However, withholding could be reduced or eliminated in the
manner described in the paragraph immediately following the five bullet points
above.

  Payments on common stock and constructive dividends

   Any dividends paid to you with respect to the shares of common stock (and
any deemed dividends resulting from certain adjustments, or failure to make
adjustments, to the number of shares of common stock to be issued upon
conversion, see "--Constructive Distributions" above) will be subject to United
States federal withholding tax at a 30% rate or such lower rate as may be
specified by an applicable income tax treaty. However, dividends that are
effectively connected with the conduct of a trade or business within the United
States or, where a tax treaty applies, dividends that are attributable to a
United States permanent establishment, are not subject to the withholding tax,
but instead are subject to United States federal income tax on a net income
basis at applicable graduated individual or corporate rates. Certain
certification and disclosure requirements must be complied with in order for
effectively connected income to be exempt from withholding. Any such
effectively connected dividends received by a foreign corporation may, under
certain circumstances, be subject to an additional "branch profits tax" at a
30% rate or such lower rate as may be specified by an applicable income tax
treaty.

   A non-United States holder of shares of common stock who wishes to claim the
benefit of an applicable treaty rate is required to satisfy applicable
certification and other requirements. If you are eligible for a reduced rate of
United States federal withholding tax pursuant to an income tax treaty, you may
obtain a refund of any excess amounts withheld by filing an appropriate claim
for refund with the IRS.

   As more fully described under "Description of CODES--Registration Rights,"
upon the occurrence of certain enumerated events we may be required to pay
additional amounts to you. Payments of such additional amounts to holders of
common stock will be subject to federal withholding.

  Sale, exchange or redemption of shares of common stock

   Any gain realized upon the sale, exchange, redemption or other disposition
of a share of common stock generally will not be subject to United States
federal income tax unless:

   . that gain is effectively connected with the conduct of a trade or business
     in the United States by you,

   . you are an individual who is present in the United States for 183 days or
     more in the taxable year of that disposition, and certain other conditions
     are met, or

   . we are or have been a "United States real property holding corporation"
     for United States federal income tax purposes.

   An individual non-United States holder described in the first bullet point
above will be subject to United States federal income tax on the net gain
derived from the sale. A non-United States holder that is a foreign corporation
and is described in the first bullet point above will be subject to tax on gain
under regular

                                      41



graduated United States federal income tax rates. In addition, a non-United
States holder that is a foreign corporation and is described in the first
bullet point above may be subject to a "branch profits tax" at a 30% rate or a
lower rate if so specified by an applicable income tax treaty. An individual
non-United States holder described in the second bullet point above will be
subject to a flat 30% United States federal income tax unless an applicable
income tax treaty exempts the gain from U.S. income tax or provides for a
reduced rate on the gain derived from the sale, which may be offset by United
States source capital losses, even though the holder is not considered a
resident of the United States.

   We believe that we are not and do not anticipate becoming a "United States
real property holding corporation" for United States federal income tax
purposes. If we are or become a "United States real property holding
corporation" and our common stock is and continues to be regularly traded on an
established securities market only a non-United States holder of common stock
who holds or held (at any time during the shorter of the five year period
preceding the date of disposition or the holder's holding period) more than
five percent of our common stock will be subject to United States federal
income tax on the disposition of our common stock.

  United States federal estate tax

   The United States federal estate tax will not apply to CODES owned by you at
the time of your death, provided that (1) you do not own 10% or more of the
total combined voting power of all classes of our voting stock (within the
meaning of the Code and the United States Treasury regulations) and (2)
interest on the CODES would not have been, if received at the time of your
death, effectively connected with your conduct of a trade or business in the
United States. However, shares of common stock held by you at the time of your
death will be included in your gross estate for United States federal estate
tax purposes unless an applicable estate tax treaty provides otherwise.

Backup Withholding and Information Reporting

   If you are a United States holder of CODES, information reporting
requirements will generally apply to all payments we make to you and to the
proceeds from a sale of a CODES or share of common stock made to you, unless
you are an exempt recipient such as a corporation. A backup withholding tax
will apply to those payments if you fail to provide a taxpayer identification
number, or a certification of exempt status, or if you fail to report in full
interest income.

   In general, if you are a non-United States holder you will not be subject to
backup withholding and information reporting with respect to payments that we
make to you provided that we do not have actual knowledge or reason to know
that you are a United States person and you have given us the statement
described above under "--Non-United States Holders--Payments With Respect to
the CODES." We must report annually to the IRS and to each non-United States
holder the amount of dividends paid to such holder and the tax withheld with
respect to such dividends, regardless of whether withholding was required.
Copies of these information returns may also be made available under the
provisions of a specific treaty or agreement to the tax authorities of the
country in which the non-United States holder resides.

   In addition, if you are a non-United States holder you will not be subject
to backup withholding or information reporting with respect to the proceeds of
the sale of a CODES or share of common stock within the United States or
conducted through certain United States-related financial intermediaries, if
the payor receives the statement described above and does not have actual
knowledge that you are a United States person, as defined under the Code, or
you otherwise establish an exemption.

   Any amounts withheld under the backup withholding rules will be allowed as a
refund or a credit against your United States federal income tax liability
provided the required information is furnished to the IRS.

                                      42



                   SELLING HOLDERS AND PLAN OF DISTRIBUTION

   The CODES were originally issued by us and sold by Lehman Brothers Inc.,
Credit Suisse First Boston Corporation, Banc of America Securities LLC, ABN
AMRO Rothschild LLC and UBS Warburg LLC (the "initial purchasers") in
transactions exempt from the registration requirements of the Securities Act to
persons reasonably believed by the initial purchasers to be "qualified
institutional buyers" as defined by Rule 144A under the Securities Act. The
selling holders may from time to time offer and sell pursuant to this
prospectus any or all of the CODES listed below and the shares of common stock
issued upon conversion of such CODES. When we refer to the "selling holders" in
this prospectus, we mean those persons listed in the table below, as well as
the pledgees, donees, assignees, transferees, successors and others who later
hold any of the selling holders' interests, provided that those interests still
are "restricted securities" as defined in the registration rights agreement.

   The table below sets forth the name of each selling holder, the principal
amount of CODES that each selling holder may offer pursuant to this prospectus
and the number of shares of common stock into which such CODES may be
converted. Unless set forth below, to our knowledge and based on information
provided by the selling holders, none of the selling holders has, or within the
past three years has had, any material relationship with us or any of our
predecessors or affiliates or beneficially owns in excess of 1% of our
outstanding common stock.

   The principal amounts of the CODES provided in the table below are based on
information provided to us by each of the selling holders as of the date they
provided such information, and the percentages are based on $300,000,000
principal amount of CODES originally outstanding. The total principal amount of
CODES included in this prospectus is less than $300,000,000 because certain
CODES have been resold in registered transactions and are, therefore, no longer
included in this prospectus and registration statement. The number of shares of
common stock that may be sold is calculated based on the current conversion
rate of 32.7955 shares of common stock per $1,000 principal amount of the CODES.

   Since the date on which each selling holder provided this information, each
selling holder identified below may have sold, transferred or otherwise
disposed of all or a portion of the selling holder's CODES in a transaction
exempt from registration under the Securities Act. Information concerning the
selling holders may change from time to time and any changed information will
be set forth in supplements to this prospectus to the extent required. In
addition, the conversion ratio, and therefore the number of shares of our
common stock issuable upon conversion of the CODES, is subject to adjustment.
Accordingly, the number of shares of common stock issuable upon conversion of
the CODES may increase or decrease.

   The selling holders may from time to time offer and sell any or all of the
securities under this prospectus. Because the selling holders are not obligated
to sell the CODES or the shares of common stock issuable upon conversion of the
CODES, we cannot estimate the amount of CODES or how many shares of common
stock that the selling holders will hold upon consummation of any sales.



                                                                      Number of Shares Percentage of
                                    Aggregate Principal Percentage of of Common Stock    Shares of
                                      Amount of CODES       CODES       That May Be     Common Stock
               Name                  That May Be Sold    Outstanding      Sold(1)      Outstanding(2)
               ----                 ------------------- ------------- ---------------- --------------
                                                                           
Acacia Life Insurance Company......       190,000             *             6,231            *
AIG/National Union Fire Insurance..       500,000             *            16,398            *
Allstate Life Insurance Company (5)       500,000             *            16,398            *
Allstate Insurance Company (5).....       750,000             *            24,597            *
American Booksellers...............        15,000             *               492            *
American Country Insurance Company.       500,000             *            16,398            *
American Fidelity Assurance Company       225,000             *             7,379            *


                                      43





                                                                             Number of Shares Percentage of
                                           Aggregate Principal Percentage of of Common Stock    Shares of
                                             Amount of CODES       CODES       That May Be     Common Stock
                   Name                     That May Be Sold    Outstanding      Sold(1)      Outstanding(2)
                   ----                    ------------------- ------------- ---------------- --------------
                                                                                  
American Founders Life Insurance
  Company.................................        380,000             *           12,462            *
American Investors Life Insurance
  Company.................................        400,000             *           13,118            *
American Pioneer Life Insurance Company of
  New York................................         70,000             *            2,296            *
American Progressive Life and Health
  Insurance Company of New York...........         70,000             *            2,296            *
Ameritas Life Insurance Company...........        310,000             *           10,167            *
AmerUs Life Insurance Co..................      1,000,000             *           32,796            *
Arkansas PERS.............................      1,225,000             *           40,174            *
Baltimore Life Insurance Company..........        280,000             *            9,183            *
Bank Austria Cayman Islands LTD...........      7,360,000          2.45%         241,375            *
Bank One Trust Co., N.A...................        300,000             *            9,839            *
Bay County PERS...........................        160,000             *            5,247            *
BCS Life Insurance Company................        580,000             *           19,021            *
BN Convertible Securities Top Fund........        400,000             *           13,118            *
BNP Paribas Equity Strategies, SNC (5)....      4,000,000          1.33%         131,182            *
Boilermakers Blacksmith Pension Trust.....      1,550,000             *           50,833            *
BP Amoco PLC Master Trust.................         68,000             *            2,230            *
BTES--Convertible ARB.....................        500,000             *           16,398            *
BTPO Growth vs Value......................      1,500,000             *           49,193            *
Buckeye State Mutual Insurance Co.........         20,000             *              656            *
CALAMOS Market Neutral Fund--
   CALAMOS Investment Trust...............     13,000,000          4.33%         426,342
California State Auto Assoc.
  Inter-Insurance.........................        280,000             *            9,183            *
California State Auto Assoc. Retirement
  Pension Plan............................         60,000             *            1,968            *
CareFirst Blue Choice, Inc................         60,000             *            1,968            *
CareFirst of Maryland, Inc................        250,000             *            8,199            *
Catholic Family Life Insurance Company....        300,000             *            9,839            *
Catholic Mutual Relief Society of America.        400,000             *           13,118            *
Catholic Relief Insurance Company of
  America.................................        550,000             *           18,038            *
Celina Mutual Insurance Company...........         15,000             *              492            *
Central States Health and Life Company of
  Omaha...................................        300,000             *            9,839            *
Charitable Convertible Securities Fund....        790,000             *           25,908            *
Charitable Income Fund....................        140,000             *            4,591            *
Chrysler Corporation Master Retirement
  Trust...................................      3,885,000          1.30%         127,411            *
City of Birmingham Retirement & Relief
  System..................................        950,000             *           31,156            *
Colgate-Palmolive Company Retirement
  Trust...................................      1,500,000             *           49,193            *
Colonial Life Insurance Company of
  Texas...................................         40,000             *            1,312            *
Concord Life Insurance Company............         90,000             *            2,952            *


                                      44





                                                                              Number of Shares Percentage of
                                            Aggregate Principal Percentage of of Common Stock    Shares of
                                              Amount of CODES       CODES       That May Be     Common Stock
                   Name                      That May Be Sold    Outstanding      Sold(1)      Outstanding(2)
                   ----                     ------------------- ------------- ---------------- --------------
                                                                                   
Conseco Annuity Assurance Multi-Bucket
  Annuity Convertible Bond Fund............      3,000,000          1.00%          98,387            *
Convertible Securities Fund................        119,000             *            3,903            *
Credit Suisse First Boston Corporation.....      2,900,000             *           95,107            *
CSA Fraternal Life Insurance Company.......         90,000             *            2,952            *
Dakota Truck Underwriters..................         25,000             *              820            *
Delaware PERS..............................      1,725,000             *           56,572            *
Delta Air Lines Master Trust (c/o Oaktree
  Capital Management, LLC).................      1,035,000             *           33,943            *
Delta Pilots D&S Trust (c/o Oaktree Capital
  Management, LLC).........................        710,000             *           23,285            *
Deutsche Banc Alex Brown Inc...............      6,900,000          2.30%         226,289            *
DKR Fixed Income Holding Fund Ltd..........      3,000,000          1.00%          98,387            *
DNB Investment.............................        750,000             *           24,597            *
Dodeca Fund, L.P...........................      1,600,000             *           52,473            *
Dorinco Reinsurance Company................      1,100,000             *           36,075            *
Drake Offshore Master Fund Ltd.............      4,200,000          1.40%         137,741
Duke Endowment.............................        310,000             *           10,167            *
EB Convertible Securities Fund.............        835,000             *           27,384            *
Educators Mutual Life Insurance Company....        200,000             *            6,559            *
Employee's Retirement of N.O. Sewer/Water
  Board....................................        700,000             *           22,957            *
Equity & Convertibles Fund.................      1,400,000             *           45,914            *
Farmers Mutual Protective Association of
  Texas....................................        110,000             *            3,608            *
Federated Rural Electric Insurance
  Exchange.................................        450,000             *           14,758            *
Field Foundation of Illinois...............         40,000             *            1,312            *
First Dakota Indemnity Company.............         15,000             *              492            *
First Mercury--Clarendon National..........        240,000             *            7,871            *
First Mercury Insurance Company............        290,000             *            9,511            *
First Union International Capital Markets
  Inc......................................      9,500,000          3.17%         311,557            *
FreeState Health Plan, Inc.................         60,000             *            1,968            *
Froley Revy Investment Convertible Security
  Fund.....................................        175,000             *            5,739            *
GenCorp Foundation.........................         35,000             *            1,148            *
Genesee County Employees' Regirement
  System...................................        750,000             *           24,597            *
Global Bermuda Limited Partnership.........      1,200,000             *           39,355            *
Golden Rule Insurance Company..............        500,000             *           16,398            *
Goodville Mutual Casualty Company..........         40,000             *            1,312            *
Grain Dealers Mutual Insurance.............        150,000             *            4,919            *
Group Hospitalization and Medical Services,
  Inc......................................        275,000             *            9,019            *
Guarantee Trust Life Insurance Company.....        500,000             *           16,398            *
Hannover Life Reassurance Company of
  America..................................      1,250,000             *           40,994            *
Health Foundation of Greater Cincinnati....        130,000             *            4,263            *


                                      45





                                                                              Number of Shares Percentage of
                                            Aggregate Principal Percentage of of Common Stock    Shares of
                                              Amount of CODES       CODES       That May Be     Common Stock
                   Name                      That May Be Sold    Outstanding      Sold(1)      Outstanding(2)
                   ----                     ------------------- ------------- ---------------- --------------
                                                                                   
HealthNow New York, Inc....................        265,000             *            8,691            *
HFR CA Select Fund.........................        350,000             *           11,478            *
ICI American Holdings Trust................        625,000             *           20,497            *
IL Annuity and Insurance Company...........      1,000,000             *           32,796            *
Indiana Lumbermen's Mutual Insurance
  Company..................................        450,000             *           14,758            *
Integrity Mutual Insurance Company.........        300,000             *            9,839            *
ISBA Mutual Insurance Company..............        210,000             *            6,887            *
Jackson County Employees' Retirement
  System...................................        180,000             *            5,903            *
Julius Baer Multibond Convertbond..........        500,000             *           16,398            *
Kanawha Insurance Company..................        800,000             *           26,236            *
KBC Financial Products USA Inc.............      1,000,000             *           32,796            *
Key Trust Convertible Securities Fund......        135,000             *            4,427            *
Key Trust Fixed Income Fund................        215,000             *            7,051            *
Koch Industries Inc. Master Pension Trust..        400,000             *           13,118            *
Lakeshore International, Ltd...............      4,800,000          1.60%         157,418            *
Landmark Life Insurance Company............         80,000             *            2,624            *
Lehman Brothers Inc. (6)...................     12,583,000          4.19%         412,666            *
Lincoln Heritage Life Insurance Company....        100,000             *            3,280            *
Lincoln Individual/Memorial Life Insurance
  Company..................................         70,000             *            2,296            *
Loyal Christian Benefit Association........        120,000             *            3,935            *
Louisiana CCRF.............................        350,000             *           11,478            *
Lutheran Brotherhood.......................        750,000             *           24,597            *
Lyxor Master Fund..........................      5,000,000             *          163,978            *
Macomb County Employees' Retirement
  System...................................        475,000             *           15,578            *
Main Street America Assurance Company......        440,000             *           14,430            *
Main Street America Holdings...............        440,000             *           14,430            *
Marquette Indemnity and Life Insurance
  Company..................................         80,000             *            2,624            *
Maryland State Retirement Fund.............      3,300,000          1.10%         108,225            *
McMahan Securities Co., L.P................      1,300,000             *           42,634            *
Medico Life Insurance Company..............        550,000             *           18,038            *
Medmarc Insurance Company..................        300,000             *            9,839            *
Michigan Mutual Insurance Co...............      1,200,000             *           39,355            *
Michigan Professional Insurance
  Exchange.................................        100,000             *            3,280            *
Microsoft Corporation......................      1,495,000             *           49,029            *
Middle Cities Risk Management Trust........        150,000             *            4,919            *
Mid-State Surety Company...................         40,000             *            1,312            *
Midwest Security Life......................        170,000             *            5,575            *
MILIC/Woodsmill Limited #1.................         15,000             *              492            *
MILIC/Woodsmill Limited #2.................         10,000             *              328            *
Morgan Stanley & Co........................      9,935,000          3.31%         325,823            *
Motion Picture Industry Health Plan--Active
  Member Fund..............................        265,000             *            8,691            *


                                      46





                                                                               Number of Shares Percentage of
                                             Aggregate Principal Percentage of of Common Stock    Shares of
                                               Amount of CODES       CODES       That May Be     Common Stock
                    Name                      That May Be Sold    Outstanding      Sold(1)      Outstanding(2)
                    ----                     ------------------- ------------- ---------------- --------------
                                                                                    
Motion Picture Industry Health Plan--Retiree
  Member Fund...............................        150,000             *            4,919            *
Mutual Protective Insurance Company.........      1,000,000             *           32,796            *
National Grange Mutual Insurance
  Company...................................        580,000             *           19,021            *
National Mutual Insurance Company...........         30,000             *              984            *
Nations Convertible Securities Fund.........      7,400,000          2.47%         242,687            *
NCMIC.......................................        300,000             *            9,839            *
New Era Life Insurance Company..............        240,000             *            7,871            *
NORCAL Mutual Insurance Company.............        375,000             *           12,298            *
OCM Convertible Trust.......................      2,250,000          0.75%          73,790            *
Oklahoma Attorneys Mutual Insurance
  Company...................................         40,000             *            1,312            *
Ondeo Nalco.................................         95,000             *            3,116            *
Parker Key/Convertible......................        215,000             *            7,051            *
Partner Reinsurance Company Ltd.............        740,000             *           24,269            *
Phico Insurance Company.....................        590,000             *           19,349            *
Physicians Life Insurance Company...........        550,000             *           18,038            *
Physicians Mutual Insurance Company.........        600,000             *           19,677            *
Physicians' Reciprocal Insurers' Account
  #7........................................      1,350,000             *           44,274            *
Pioneer Insurance Company...................         60,000             *            1,968            *
Potlatch....................................        560,000             *           18,365            *
Premera Blue Cross..........................      1,300,000             *           42,634            *
Quattro Fund................................      2,000,000             *           65,591            *
Qwest Occupational Health Trust.............        150,000             *            4,919            *
Ramius Capital Group........................        425,000             *           13,938            *
RCG Halifax Master Fund, LTD................        250,000             *            8,199            *
RCG Latitude Master Fund LTD................      1,740,000             *           57,064            *
RCG Multi Strategy LP.......................        725,000             *           23,777            *
Saloman Brothers Asset Management, Inc......     20,000,000          6.67%         655,910            *
San Diego County Employees Retirement
  Association...............................      1,950,000             *           63,951            *
Scor Life Re Convertible Program............        380,000             *           12,462            *
Southern Farm Bureau Life Insurance.........        775,000             *           25,417            *
Southern Farm Bureau Life Insurance
  Company...................................      1,000,000             *           32,796            *
Standard Mutual Insurance Company...........        230,000             *            7,543            *
Starvest Combined Portfolio.................        535,000             *           17,546            *
Starvest Managed Portfolio..................         30,000             *              984            *
State Employees' Retirement Fund of the
  State of Delaware.........................      1,540,000             *           50,505            *
State National Insurance Company............        100,000             *            3,280            *
State of Connecticut Combined Investment
  Funds.....................................      3,845,000          1.28%         126,099            *
State of Florida Division of Treasury.......      2,000,000             *           65,591            *
State of Florida, Office of the Treasurer...      3,000,000          1.00%          98,387            *
State of Oregon--Equity.....................      5,550,000          1.85%         182,015            *
Syngenta AG.................................        300,000             *            9,839            *


                                      47





                                                                                Number of Shares Percentage of
                                              Aggregate Principal Percentage of of Common Stock    Shares of
                                                Amount of CODES       CODES       That May Be     Common Stock
                    Name                       That May Be Sold    Outstanding      Sold(1)      Outstanding(2)
                    ----                      ------------------- ------------- ---------------- --------------
                                                                                     
Texas Builders Insurance Company.............         170,000             *            5,575             *
Texas Hospital Insurance Exchange............          20,000             *              656             *
The Cockrell Foundation......................         100,000             *            3,280             *
The Gabelli Convertible Securities Fund,
  Inc........................................          50,000             *            1,640             *
The Philanthropic Mutual Life Insurance
  Company....................................          80,000             *            2,624             *
Transguard Insurance Company of America,
  Inc........................................         690,000             *           22,629             *
Tribeca Investments L.L.C....................       1,000,000             *           32,796             *
Tuscarora Wayne Mutual Insurance
  Company....................................          80,000             *            2,624             *
UBS O'Connor LLC F/B/O O'Connor Global
  Convertible Portfolio......................         250,000             *            8,199             *
UBS O'Connor LLC F/B/O UBS Global
  Equity Arbitrage Master Ltd................       3,750,000          1.25%         122,983             *
Union Security Life Insurance Co.............          30,000             *              984             *
United National Insurance Company............         700,000             *           22,957             *
U.S. Olympic Foundation......................         700,000             *           22,957             *
Vesta-Inex Insurance Exchange IASA...........         300,000             *            9,839             *
Victory Convertible Securities Fund..........         520,000             *           17,054             *
West Virginia Fire Insurance Company.........           5,000             *              164             *
Western Home Insurance Company...............          90,000             *            2,952             *
Westward Life Insurance Company..............         120,000             *            3,935             *
Wisconsin Lawyers Mutual Insurance
  Company....................................         150,000             *            4,919             *
Wisconsin Mutual Insurance Company...........         130,000             *            4,263             *
Zazove Hedged Convertible Fund L.P...........       1,700,000             *           55,752             *
Zeneca Holdings Trust........................         425,000             *           13,938             *
Zurich Institutional Benchmarks..............         515,000             *           16,890             *
Zurich Institutional Benchmarks Master Fund
  Ltd........................................         253,000             *            8,297             *
                                                 ------------        ------        ---------          ----
Subtotal (5).................................    $218,598,000         72.87%       7,169,031          6.29%
                                                 ============        ======        =========          ====
All other holders of convertible notes or
  future transferees, pledgees, donees,
  assignees or successors of any such holders
  (3) (4)....................................    $ 81,402,000         27.13%       2,669,619          2.44%
                                                 ------------        ------        ---------          ----
Total (5)....................................    $300,000,000        100.00%       9,838,650          8.44%
                                                 ============        ======        =========          ====

- --------
*  Less than 1%
(1) Assumes conversion of all of the holders CODES at a conversion rate of
    32.7955 shares of common stock per $1,000 principal amount of CODES. The
    conversion rate is subject to adjustment as described under "Description of
    the CODES--Conversion Rights--Conversion Price Adjustments." As a result,
    the number of shares of common stock issuable upon conversion of the CODES
    may increase or decrease in the future.
(2) Calculated based on Rule 13d-3(d)(1) under the Exchange Act, using
    106,776,102 shares of common stock outstanding as of May 9, 2002. In
    calculating this amount for each holder or group, we treated as

                                      48



    outstanding the number of shares of common stock issuable upon conversion
    of all of the CODES owned by that holder or group, but we did not assume
    the conversion of CODES owned by any other holder or group.
(3) Only selling holders identified above who beneficially own the convertible
    notes set forth opposite their names in the foregoing table on the date of
    this prospectus may sell the convertible notes or shares of common stock
    issuable upon conversion of the convertible notes pursuant to the
    registration statement. Prior to any use of the prospectus in connection
    with the offering of convertible notes or common stock by any holder not
    identified above, this prospectus will be amended as required to set forth
    the name and principal amount or number of securities to be offered.
(4) Assumes that any other holders of the convertible notes or any future
    pledgees, donees assignees, transferees or successors of or from any other
    such holders of the CODES do not beneficially own any shares of common
    stock other than the common stock issuable upon conversion of the CODES at
    the current conversion rate.
(5) The shares shown for this holder or group does not include (a) 50,691
    shares of outstanding common stock beneficially owned by BNP Paribas Equity
    Strategies, SNC as of November 14, 2001 and (b) 39,100 shares of
    outstanding common stock held by Allstate Insurance Company, 2,100 shares
    held by Allstate Life Insurance Company and 25,600 shares held by other
    Allstate affiliates, all as of December 19, 2001.
(6) Lehman Brothers Inc. was an initial purchaser (and the representative of
    the initial purchasers) in connection with the initial private sale of the
    CODES and the reoffering pursuant to Rule 144A. Credit Suisse First Boston
    Corporation and Banc of America Securities LLC were also initial purchasers
    and co-managers of the Rule 144A offering.

                                      49



   The selling holders will be offering and selling all of the securities
offered and sold under this prospectus. We will not receive any of the proceeds
from the offering of the CODES or the shares of common stock by the selling
holders. In connection with the initial sales of the CODES, we entered into the
registration rights agreement with the initial purchasers. Securities may only
be offered or sold under this prospectus pursuant to the terms of the
registration rights agreement. However, selling holders may resell all or a
portion of the securities in open market transactions in reliance upon Rule 144
or Rule 144A under the Securities Act, provided that they meet the criteria and
conform to the requirements of those rules. We are registering the CODES and
shares of common stock covered by this prospectus in order to permit holders to
sell the securities publicly from time to time, provided that this prospectus
does not cover resales of securities that are no longer "restricted securities"
as defined in the registration rights agreement. We have agreed, among other
things, to bear all expenses, other than underwriting discounts and selling
commissions, in connection with the registration and sale of the CODES and
shares of common stock covered by this prospectus. We estimate those expenses
to be approximately $125,000, excluding expenses associated with the original
issuance of the CODES.

   The selling holders may sell all or a portion of the CODES and any shares of
common stock received upon conversion beneficially owned by them and offered
hereby from time to time:

   . directly; or

   . through underwriters, broker-dealers or agents, who may receive
     compensation in the form of discounts, commissions or concessions from the
     selling holders and/or from the purchasers of the CODES and shares of
     common stock for whom they may act as agent.

   The CODES and the shares of common stock received upon conversion may be
sold from time to time in one or more transactions at:

   . fixed prices, which may be changed;

   . prevailing market prices at the time of sale;

   . varying prices determined at the time of sale; or

   . negotiated prices.

   These prices will be determined by the selling holders or by agreement
between the selling holders and underwriters or dealers who may receive fees or
commissions in connection with the sale. The aggregate proceeds to the selling
holders from the sale of the CODES or shares of common stock offered by them
will be the purchase price of the CODES or shares of common stock less
discounts and commissions, if any.

   The sales described in the preceding paragraph may be effected in
transactions:

   . on any national securities exchange or quotation service on which the
     CODES or shares of common stock may be listed or quoted at the time of
     sale, including the New York Stock Exchange in the case of the shares of
     common stock;

   . in the over-the-counter market;

   . in transactions otherwise than on such exchanges or services or in the
     over-the-counter market; or

   . through the writing of options.

   These transactions may include block transactions or crosses. Crosses are
transactions in which the same broker acts as an agent on both sides of the
trade.

   In connection with sales of the CODES and shares of common stock or
otherwise, the selling holders may enter into hedging transactions with
broker-dealers. These broker-dealers may in turn engage in short sales of the
CODES and shares of common stock in the course of hedging their positions. The
selling holders may also

                                      50



sell the CODES and shares of common stock short and deliver the CODES and
shares of common stock to close out short positions, or loan or pledge CODES
and shares of common stock to broker-dealers that in turn may sell the CODES
and shares of common stock.

   To our knowledge, there are currently no plans, arrangements or
understandings between any selling holders and any underwriter, broker-dealer
or agent regarding the sale of the CODES and the shares of common stock by the
selling holders. Selling holders may not sell any, or may not sell all, of the
CODES and the shares of common stock offered by them pursuant to this
prospectus. In addition, we cannot assure you that a selling holder will not
transfer, devise or give the CODES and the shares of common stock by other
means not described in this prospectus. In addition, any securities covered by
this prospectus that qualify for sale pursuant to Rule 144 or Rule 144A of the
Securities Act may be sold under one of those rules rather than pursuant to
this prospectus.

   Our common stock is listed and traded on the New York Stock Exchange. The
CODES are a recent issue with no established public trading market. We do not
intend to apply for the CODES to be listed on any securities exchange or to be
quoted on any automated quotation system. The initial purchasers advised us
that they intend to make a market in the CODES, but they are not obligated to
do so and may discontinue market making at any time without notice. The CODES
issued in the private placement are eligible for trading in the PORTAL market.
However, the CODES sold using this prospectus are not eligible for PORTAL and
there is no other market for those CODES. Accordingly, we cannot give you any
assurance as to the liquidity of the trading market for the CODES.

   The selling holders who are also broker-dealers are "underwriters" within
the meaning of the Securities Act. We have been advised that, with respect to
any selling holders who are affiliates of broker-dealers, (1) the selling
holder purchased the CODES in the ordinary course of business and (2) at the
time of the purchase of the CODES to be resold, the selling holder had no
agreements or understandings, directly or indirectly, with any person to
distribute the CODES or the underlying common stock.

   The other selling holders and any broker and any broker-dealers, agents or
underwriters that participate with the selling holders in the distribution of
the CODES or the shares of common stock may be deemed to be "underwriters"
within the meaning of the Securities Act. If so, any commissions received by
these broker-dealers, agents or underwriters and any profit on the resale of
the CODES or the shares of common stock purchased by them may be deemed
underwriting commissions or discounts under the Securities Act. In addition,
any profits realized by the selling holders may be deemed to be underwriting
discounts and commissions under the Securities Act. To the extent the selling
holders may be deemed to be underwriters, the selling holders may be subject to
statutory liabilities, including, without limitation, liabilities under
Sections 11, 12 and 17 of the Securities Act and Rule 10b-5 under the Exchange
Act.

   Because the selling holders may be deemed to be underwriters within the
meaning of the Securities Act, they may be subject to the prospectus delivery
requirements of the Securities Act. At any time a particular offer of the
securities is made, a revised prospectus or prospectus supplement, if required,
will be distributed that will disclose:

   . the name of the selling holder and any participating underwriters,
     broker-dealers or agents;

   . the aggregate amount and type of securities being offered;

   . the price at which the securities are being sold and other material terms
     of the offering;

   . any discounts, commissions, concessions or other items constituting
     compensation from the selling holders and any discounts, commissions or
     concessions allowed or reallowed or paid to dealers; and

   . that the participating broker-dealers did not conduct any investigation to
     verify the information in this prospectus or incorporated in this
     prospectus by reference.

   If required, the prospectus supplement or a post-effective amendment will be
filed with the SEC to reflect the disclosures of additional information with
respect to the distribution of the securities. In addition, if we receive
notice from a selling holder that a donee or pledgee intends to sell more than
500 shares of our common stock, a supplement to this prospectus will be filed,
if required.

                                      51



   As described above, the CODES were issued and sold in October 2001 in
transactions exempt from the registration requirements of the Securities Act to
persons reasonably believed by the initial purchasers to be "qualified
institutional buyers" as defined in Rule 144A under the Securities Act.
Pursuant to the registration rights agreement, we have agreed to indemnify each
selling holder, and each selling holder has agreed to indemnify us, against
specified liabilities arising under the Securities Act. The selling holders may
also agree to indemnify any broker-dealer or agent that participates in
transactions involving the sales of securities against some liabilities,
including liabilities that arise under the Securities Act.

   The selling holders and any other person participating in the distribution
of the securities will be subject to the Exchange Act. The Exchange Act rules
include, among others, Regulation M, which may limit the timing of purchases
and sales of any of the CODES and the underlying shares of common stock by the
selling holders and any such other person. Regulation M may also restrict the
ability of any person engaged in the distribution of the CODES and the
underlying shares of common stock being distributed for a period of up to five
business days prior to the commencement of the distribution. This may affect
the marketability of the CODES and the underlying shares of common stock and
the ability of any person or entity to engage in market-making activities with
respect to the CODES and the underlying shares of common stock.

                                 LEGAL MATTERS

   The validity of the CODES offered by this prospectus and of the shares of
common stock issuable upon conversion thereof will be passed upon for us by
Quarles & Brady LLP, Milwaukee, Wisconsin.

                            INDEPENDENT ACCOUNTANTS

   Our consolidated balance sheets as of September 30, 2001 and 2000, the
related consolidated statements of income, shareholders' equity and cash flows
for each of the years in the three-year period ended September 30, 2001,
incorporated by reference in this prospectus from our Annual Report on Form
10-K for the fiscal year ended September 30, 2001, have been audited by KPMG
LLP, independent certified public accountants as stated in their reports
appearing thereon. Such financial statements have been incorporated by
reference in reliance upon the reports of KPMG LLP.

                            ADDITIONAL INFORMATION

   We file annual, quarterly and special reports, proxy statements, and other
documents with the Securities and Exchange Commission under the Securities
Exchange Act of 1934. Our SEC filings are available to the public at the SEC's
website at http://www.sec.gov. You may also read and copy any document we file
at the following SEC public reference rooms:


                                                
Judiciary Plaza, Room 1024 New York Regional Office       Citicorp Center,
 450 Fifth Street, N.W.          233 Broadway                Suite 1400
 Washington, D.C. 20549    New York, New York 10048    500 West Madison Street
                                                       Chicago, Illinois 60621


   You may obtain information regarding the operation of the public reference
rooms by calling the SEC at 1-800-SEC-0330.

   We have filed a registration statement on Form S-3 under the Securities Act
of 1933 with the SEC which covers the CODES and the shares of common stock
described in this prospectus. The registration statement contains information
in addition to the information in this prospectus. You may obtain that
additional information at the addresses above. This prospectus, and the
documents which this prospectus incorporates by reference, describe certain
contracts or other documents. These descriptions are only summaries, and are
not necessarily complete. If you wish further information rather than a
summary, you should review a copy of the document if we have filed it as an
exhibit to the registration statement or a document incorporated by reference
in this prospectus.

                                      52



   In addition, because our common stock is listed on the New York Stock
Exchange (ticker symbol "AOT"), you may read our reports, proxy statement, and
other documents at the offices of the New York Stock Exchange at 20 Broad
Street, New York, New York 10005.

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

   The SEC allows us to "incorporate by reference" information in documents
that we file with it. We have elected to use a similar procedure in connection
with this prospectus, which means that we can disclose important information by
referring you to those documents that are considered part of this prospectus.
Information that we file later with the SEC will automatically update and
supersede the previously filed information. Note that we filed our documents
under the name Sybron International Corporation until our name was formally
changed to Apogent Technologies Inc. on January 31, 2001, so you may need to
look under both names to find all information that is of interest to you. We
incorporate by reference into this prospectus:

   . our annual report on Form 10-K for the fiscal year ended September 30,
     2001;

   . our quarterly reports on Form 10-Q for the quarterly periods ended
     December 31, 2001 and March 31, 2002;

   . our current reports on Form 8-K or 8-K/A dated as of October 3, 2001,
     October 5, 2001, October 11, 2001 and November 15, 2001;

   . our quarterly report on Form 10-Q for the quarter ended December 31, 2001;

   . the description of Apogent common stock in our current report on Form 8-K
     dated November 15, 2001;

   . the description of Apogent preferred stock purchase rights in our
     registration statement on Form 8-A dated December 11, 2000; and

   . any future filings we make with the SEC under Sections 13(a), 13(c), 14 or
     15(d) of the Securities Exchange Act of 1934 until we sell all of the
     securities offered by this prospectus or terminate the offering.

   You may request copies of these filings at no cost, by writing or calling us
at Apogent Technologies Inc., Attn: Investor Relations, 48 Congress Street,
Portsmouth, New Hampshire 03801, (603) 433-6131. We will also send you any
exhibits that are specifically incorporated by reference in a document that you
request.

   We maintain an Internet web site at http://www.apogent.com. Our web site and
information at that site, or connected to that site, is not incorporated into
this prospectus.

                                      53



                                    Annex A

        NOTICE OF PROPOSED TRANSFER PURSUANT TO REGISTRATION STATEMENT

 Apogent Technologies Inc.           Copy to:  The Bank of New
 c/o Quarles & Brady LLP             York
 411 East Wisconsin Avenue                   5 Penn Plaza
 Milwaukee, WI 53202                         New York, NY 10001
 Attn:  Shawn Crawford or            Attn:     Will Colon
      Joseph Masterson                       DWAC Unit
 Fax: 414-271-3552                   Fax:      212-235-2256

   Re:  Apogent Technologies Inc.
        2.25% Senior Convertible Contingent Debt Securities ("CODES")

Dear Ladies and Gentlemen:

   Please be advised that                          intends to transfer either
[Complete the applicable clause and strike out whichever clause (a) or (b) does
not apply] (a)               aggregate principal amount of the above-referenced
CODES or (b)          shares of Apogent common stock received upon conversion
of the above referenced CODES pursuant to an effective Registration Statement
on Form S-3 filed by Apogent.

Dated:

                                          Very truly yours,

                                          _____________________________________
                                          (Name)

                                          By: _______________________________
                                             (Authorized Signature)

                                      A-1



                                    Annex B

        BROKER'S NOTICE OF TRANSFER PURSUANT TO REGISTRATION STATEMENT

 Apogent Technologies Inc.           Copy to:  The Bank of New
 c/o Quarles & Brady LLP             York
 411 East Wisconsin Avenue                   5 Penn Plaza
 Milwaukee, WI 53202                         New York, NY 10001
 Attn:  Shawn Crawford or            Attn:     Will Colon
      Joseph Masterson                       DWAC Unit
 Fax: 414-271-3552                   Fax:      212-235-2256

   Re:  Apogent Technologies Inc.
       2.25% Senior Convertible Contingent Debt Securities ("CODES")

Dear Ladies and Gentlemen:

   Please be advised that                          has transferred either
[Complete the applicable clause and strike out whichever clause (a) or (b) does
not apply] (a)               aggregate principal amount of the above-referenced
CODES or (b)          shares of Apogent common stock received upon conversion
of the above referenced CODES pursuant to an effective Registration Statement
on Form S-3 filed by Apogent.

   We hereby certify that the prospectus delivery requirements, if any, of the
Securities Act of 1933, as amended, have been satisfied, that the
above-named-beneficial owner of the CODES or related common stock is named as a
"Selling Holder" in the related prospectus, and that the CODES transferred are
the CODES listed in such prospectus opposite such owner's name, or the shares
of common stock transferred are the shares of common stock received upon
conversion of the CODES, all in accordance with the applicable rules and
regulations of the Securities Act of 1933.

Dated:

                                          Very truly yours,

                                          _____________________________________
                                          (Name)

                                          By: _______________________________
                                             (Authorized Signature)

                                      B-1



- --------------------------------------------------------------------------------

             2.25% Senior Convertible Contingent Debt SecuritiesSM
                              (CODESSM) due 2021

                               -----------------

                                  PROSPECTUS
                                 June 14, 2002

                               -----------------

- --------------------------------------------------------------------------------



                                    PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.  Other Expenses of Issuance and Distribution.

   The estimated expenses in connection with the issuance and distribution of
the securities covered by this Registration Statement are as follows:


                                                
                    SEC registration fee (actual). $ 71,700
                    Professional fees and expenses   35,000
                    Printing costs................    8,000
                    Trustee fees and other costs..   10,300

                                                   --------
                       Total...................... $125,000

                                                   ========


   Apogent Technologies Inc. will bear all of the above-described expenses
related to the registration and sale of the securities covered by this
Registration Statement. The selling holders for whom Apogent Technologies Inc.
has registered the securities covered by this Registration Statement will bear
the cost of all brokerage commissions and discounts incurred in the
distribution of the securities under the Registration Statement, which
commissions and discounts are not included in the above table.

Item 15.  Indemnification of Directors and Officers.

   Wisconsin Law.  Apogent Technologies Inc. is incorporated under the
Wisconsin Business Corporation Law (the "WBCL").

   Under Section 180.0851(1) of the WBCL, Apogent is required to indemnify a
director or officer, to the extent such person is successful on the merits or
otherwise in the defense of a proceeding, for all reasonable expenses incurred
in the proceeding if such person was a party because he or she was a director
or officer of Apogent Technologies Inc. In all other cases, Apogent is required
by Section 180.0851(2) to indemnify a director or officer against liability
incurred in a proceeding to which such person was a party because he or she was
a director or officer of Apogent, unless it is determined that he or she
breached or failed to perform a duty owed to Apogent and the breach or failure
to perform constitutes:

   . a willful failure to deal fairly with Apogent or its shareholders in
     connection with a matter in which the director or officer has a material
     conflict of interest;

   . a violation of criminal law, unless the director or officer had reasonable
     cause to believe his or her conduct was lawful or no reasonable cause to
     believe his or her conduct was unlawful;

   . a transaction from which the director or officer derived an improper
     personal profit; or

   . willful misconduct.

   Section 180.0858(1) provides that, subject to certain limitations, the
mandatory indemnification provisions do not preclude any additional right to
indemnification or allowance of expenses that a director or officer may have
under Apogent's articles of incorporation, bylaws, any written agreement or a
resolution of the board of directors or shareholders.

   Section 180.0859 of the WBCL provides that it is the public policy of the
State of Wisconsin to require or permit indemnification, allowance of expenses
and insurance to the extent required or permitted under Sections 180.0850 to
180.0858 of the WBCL, for any liability incurred in connection with a
proceeding involving a federal or state statute, rule or regulation regulating
the offer, sale or purchase of securities.

   Section 180.0828 of the WBCL provides that, with certain exceptions, a
director is not liable to a corporation, its shareholders, or any person
asserting rights on behalf of the corporation or its shareholders, for

                                     II-1



damages, settlements, fees, fines, penalties or other monetary liabilities
arising from a breach of, or failure to perform, any duty resulting solely from
his or her status as a director, unless the person asserting liability proves
that the breach or failure to perform constitutes any of the four exceptions to
mandatory indemnification under Section 180.0851(2) referred to above.

   Under Section 180.0833 of the WBCL, directors of Apogent against whom claims
are asserted with respect to the declaration of improper dividends or
distributions to shareholders or certain other improper acts which they
approved are entitled to contribution from other directors who approved such
actions and from shareholders who knowingly accepted an improper dividend or
distribution, as provided therein.

   Bylaws.  Article VIII of Apogent's bylaws contains provisions that generally
parallel the indemnification provisions of the WBCL and cover certain
procedural matters not dealt with in the WBCL. Furthermore, certain officers of
Apogent are also officers of subsidiaries of Apogent and, as a result, such
officers may be entitled to indemnification pursuant to provisions of such
subsidiaries' governing corporate laws, articles of incorporation and bylaws.
Apogent has also executed an indemnity agreement with each of its directors and
certain of its officers which provides certain indemnity rights to such
individuals.

   Insurance.  Directors and officers of Apogent are covered by directors' and
officers' liability insurance under which they are insured (subject to certain
exceptions and limitations specified in the policy) against expenses and
liabilities arising out of proceedings to which they are parties by reason of
being or having been directors or officers, including liabilities under the
Securities Act of 1933.

Item 16.  Exhibits.

   See Exhibit Index following the Signatures page in this registration
statement, which Exhibit Index is incorporated herein by reference.

Item 17.  Undertakings.

   The undersigned registrant hereby undertakes (in accordance with the
corresponding lettered undertakings in Item 512 of Regulation S-K):

      (a) Rule 415 Offering.  (1) To file, during any period in which offers or
   sales are being made, a post-effective amendment to this registration
   statement:

          (i) To include any prospectus required by Section 10(a)(3) of the
       Securities Act of 1933;

          (ii) To reflect in the prospectus any facts or events arising after
       the effective date of the registration statement (or the most recent
       post-effective amendment thereof) which, individually or in the
       aggregate, represent a fundamental change in the information set forth
       in the registration statement. Notwithstanding the foregoing, any
       increase or decrease in volume of securities offered (if the total
       dollar value of securities offered would not exceed that which was
       registered) and any deviation from the low or high end of the estimated
       maximum offering range may be reflected in the form of prospectus filed
       with the Commission pursuant to Rule 424(b) if, in the aggregate, the
       changes in volume and price represent no more than a 20% change in the
       maximum aggregate offering price set forth in the "Calculation of
       Registration Fee" table in the effective registration statement;

          (iii) To include any material information with respect to the plan of
       distribution not previously disclosed in the registration statement or
       any material change to such information in the registration statement;

   Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) above do not
   apply if the information required to be included in a post-effective
   amendment by those paragraphs is contained in periodic reports filed by the
   registrant with the Commission pursuant to Section 13 or Section 15(d) of
   the Securities Exchange Act of 1934 that are incorporated by reference in
   the registration statement.

                                     II-2



      (2) That, for the purpose of determining any liability under the
   Securities Act of 1933, each such post-effective amendment shall be deemed
   to be a new registration statement relating to the securities offered
   therein, and the offering of such securities at that time shall be deemed to
   be the initial bona fide offering thereof.

      (3) To remove from registration by means of a post-effective amendment
   any of the securities being registered which remain unsold at the
   termination of the offering.

      (4) That, for purposes of determining any liability under the Securities
   Act of 1933, each filing of the Registrant's annual report pursuant to
   Section 13(a) of Section 15(d) of the Securities Exchange Act of 1934 (and,
   where applicable, each filing of an employee benefit plan's annual report
   pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is
   incorporated by reference in the Registration Statement shall be deemed to
   be a new registration statement relating to the securities offered therein,
   and the offering of such securities at that time shall be deemed to be the
   initial bona fide offering thereof.

      (g)(1) That prior to any public reoffering of the securities registered
   hereunder through use of a prospectus which is part of this registration
   statement, by any person or party who is deemed to be an underwriter within
   the meaning of Rule 145(c), the issuer undertakes that such reoffering
   prospectus will contain the information called for by the applicable
   registration form with respect to reofferings by persons who may be deemed
   underwriters, in addition to the information called for by the other Items
   of the applicable form.

      (2) That every prospectus: (i) that is filed pursuant to paragraph (1)
   immediately preceding, or (ii) that purports to meet the requirements of
   Section 10(a)(3) of the Act and is used in connection with an offering of
   securities subject to Rule 415, will be filed as a part of an amendment to
   the registration statement and will not be used until such amendment is
   effective, and that, for purposes of determining any liability under the
   Securities Act of 1933, each such post effective amendment shall be deemed
   to be a new registration statement relating to the securities offered
   therein, and the offering of such securities at that time shall be deemed to
   be the initial bona fide offering thereof.

      (h) Insofar as indemnification for liabilities arising under the
   Securities Act of 1933 may be permitted to directors, officers and
   controlling persons of the registrant pursuant to the provisions referred to
   in Item 15 of this registration statement, or otherwise, the registrant has
   been advised that in the opinion of the Securities and Exchange Commission
   such indemnification is against public policy as expressed in the Act and
   is, therefore, unenforceable. In the event that a claim for indemnification
   against such liabilities (other than the payment by the registrant of
   expenses incurred or paid by a director, officer or controlling person of
   the registrant in the successful defense of any action, suit or proceeding)
   is asserted by such director, officer or controlling person in connection
   with the securities being registered, the registrant will, unless in the
   opinion of its counsel the matter has been settled by controlling precedent,
   submit to a court of appropriate jurisdiction the question whether such
   indemnification by it is against public policy as expressed in the Act and
   will be governed by the final adjudication of such issue.

                                     II-3



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          APOGENT TECHNOLOGIES INC.

                                                  FRANK H. JELLINEK, JR.**
                                          By: _______________________________
                                                   Frank H. Jellinek, Jr.
                                               President and Chief Executive
                                                          Officer

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

  FRANK H. JELLINEK, JR.**     President and Chief Executive
- -----------------------------    Officer and Director
   Frank H. Jellinek, Jr.        (principal executive
                                 officer of the registrant)

     JEFFREY C. LEATHE**       Executive Vice
- -----------------------------    President-Finance, Chief
      Jeffrey C. Leathe          Financial Officer and
                                 Treasurer (principal
                                 financial officer and
                                 principal accounting
                                 officer of the registrant)

     DON H. DAVIS, JR.**       Director
- -----------------------------
      Don H. Davis, Jr.

   CHRISTOPHER L. DOERR**      Director
- -----------------------------
    Christopher L. Doerr

     STEPHEN R. HARDIS**       Director
- -----------------------------
      Stephen R. Hardis

     R. JEFFREY HARRIS**       Director
- -----------------------------
      R. Jeffrey Harris


                                     II-4



          Signature                        Title
          ---------                        -----

  /s/  WILLIAM U. PARFET **    Director
- -----------------------------
      William U. Parfet

     /s/  JOE L. ROBY**        Director
- -----------------------------
         Joe L. Roby

  /s/  RICHARD W. VIESER**     Director
- -----------------------------
      Richard W. Vieser

   /s/  KENNETH F. YONTZ**     Director
- -----------------------------
      Kenneth F. Yontz

  /s/  WILLIAM H. BINNIE**     Director
- -----------------------------
     William H. Binnie**

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-5



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          APOGENT FINANCE COMPANY

                                                    JEFFREY C. LEATHE**
                                          By: _______________________________
                                                     Jeffrey C. Leathe
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective to the registration statement has been signed by the following
persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

      JEFFREY C. LEATHE **     President and Treasurer
- -----------------------------    (principal executive
      Jeffrey C. Leathe          officer, principal
                                 financial officer and
                                 principal accounting
                                 officer of the registrant)

   FRANK H. JELLINEK, JR.**    Director
- -----------------------------
   Frank H. Jellinek, Jr.

      JEFFREY C. LEATHE**      Director
- -----------------------------
      Jeffrey C. Leathe

   /S/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

      /S/  MICHAEL K. BRESSON  , by power of attorney.
**By: _____________________
         Michael K. Bresson

                                     II-6



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          APPLIED BIOTECH, INC.

                                                     JEFFREY C. KONECKE
                                          By: _______________________________
                                                     Jeffrey C. Konecke
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective to the registration statement has been signed by the following
persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

      JEFFREY C. KONECKE       President (principal
- -----------------------------    executive officer of the
     Jeffrey C. Konecke          registrant)

      JEFFREY C. LEATHE**      Treasurer (principal
- -----------------------------    financial officer of the
      Jeffrey C. Leathe          registrant)

          DALE HILL**          Controller (principal
- -----------------------------    accounting officer of the
          Dale Hill              registrant)

    FRANK H. JELLINEK, JR**    Director
- -----------------------------
   Frank H. Jellinek, Jr.

      JEFFREY C. LEATHE**      Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

      /S/  MICHAEL K. BRESSON  , by power of attorney.
**By: _____________________
         Michael K. Bresson

                                     II-7



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          BARNSTEAD THERMOLYNE CORPORATION

                                                       DUNCAN ROSS**
                                          By: _______________________________
                                                        Duncan Ross
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
     DUNCAN ROSS**       (principal executive officer
- ------------------------ of the registrant)
      Duncan Ross

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Vice President-Finance
  BRENDA K. HOEFLER**    (principal accounting officer
- ------------------------ of the
   Brenda K. Hoefler       registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-8



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          CHASE SCIENTIFIC GLASS, INC.

                                                      STEPHEN MUNZER**
                                          By: _______________________________
                                                       Stephen Munzer
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this amendment
to the post-effective registration statement has been signed by the following
persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
    STEPHEN MUNZER**     (principal executive officer
- ------------------------ of the registrant)
     Stephen Munzer

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Vice President-Finance
     DAVID BALES**       (principal accounting officer
- ------------------------ of the
      David Bales          registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-9



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          INNOVATIVE DIAGNOSTICS INC.

                                                      YUH-GENG TSAY**
                                          By: _______________________________
                                                       Yuh-Geng Tsay
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this amendment
to the post-effective registration statement has been signed by the following
persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
    YUH-GENG TSAY**      (principal executive officer
- ------------------------ of the registrant)
     Yuh-Geng Tsay

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Controller (principal
   LINDA M. LECHNER**    accounting officer of the
- ------------------------ registrant)
    Linda M. Lechner

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-10



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          ERIE SCIENTIFIC COMPANY

                                                      MARK F. STUPPY**
                                          By: _______________________________
                                                       Mark F. Stuppy
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this amendment
to the post-effective registration statement has been signed by the following
persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
    MARK F. STUPPY**     (principal executive officer
- ------------------------ of the registrant)
     Mark F. Stuppy

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Comptroller (principal
     GERALD PRIOR**      accounting officer of the
- ------------------------ registrant)
      Gerald Prior

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-11



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          ERIE SCIENTIFIC COMPANY OF PUERTO RICO

                                                  FRANK H. JELLINEK, JR.**
                                          By: _______________________________
                                                   Frank H. Jellinek, Jr.
                                             Chairman of the Board & President

   Pursuant to the requirements of the Securities Act of 1933, this amendment
to the post-effective registration statement has been signed by the following
persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

FRANK H. JELLINEK, JR.** Chairman of the Board &
- ------------------------ President (principal
                           executive officer of the
 Frank H. Jellinek, Jr.    registrant)

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Controller (principal
     GERALD PRIOR**      accounting officer of the
- ------------------------ registrant)
      Gerald Prior

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-12



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          ERIE UK HOLDING COMPANY

                                                    JEFFREY C. LEATHE**
                                          By_________________________________
                                                     Jeffrey C. Leathe
                                                  President and Treasurer

   Pursuant to the requirements of the Securities Act of 1933, this amendment
to the post-effective registration statement has been signed by the following
persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

  JEFFREY C. LEATHE**    President and Treasurer
- ------------------------ (principal executive officer,
   Jeffrey C. Leathe       principal financial officer
                           and principal accounting
                           officer of the registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-13



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          EVER READY THERMOMETER CO., INC.

                                                     TIMOTHY B. WEISS**
                                          By: _______________________________
                                                      Timothy B. Weiss
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this amendment
to the post-effective registration statement has been signed by the following
persons in the capacities and on the date indicated.*
       Signature                     Title
       ---------                     -----

   TIMOTHY B. WEISS**    President
- ------------------------   (principal executive officer
    Timothy B. Weiss       of the registrant)

  JEFFREY C. LEATHE**    Treasurer (principal
- ------------------------   financial officer of the
   Jeffrey C. Leathe       registrant)

     VITO LILOIA**       Accounting Manager (principal
- ------------------------   accounting officer of the
      Vito Liloia          registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-14



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          GENEVAC INC.

                                                        HARRY COLE**
                                          By: _______________________________
                                                         Harry Cole
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this amendment
to the post-effective registration statement has been signed by the following
persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

      HARRY COLE**       President
- ------------------------   (principal executive officer
       Harry Cole          of the registrant)

  JEFFREY C. LEATHE**    Treasurer (principal
- ------------------------   financial officer of the
   Jeffrey C. Leathe       registrant)

      DEBRA HALL**       General Manager (principal
- ------------------------   accounting officer of the
       Debra Hall          registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-15



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          G&P LABWARE HOLDINGS INC.

                                                    ROBERT V. AHLGREN**
                                          By: _______________________________
                                                     Robert V. Ahlgren
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                         Title
          ---------                         -----

     ROBERT V. AHLGREN**        President (principal
- -----------------------------     executive officer of the
      Robert V. Ahlgren           registrant)

     JEFFREY C. LEATHE**        Treasurer (principal
- -----------------------------   financial officer of the
      Jeffrey C. Leathe         registrant)

        KAREN DALLY**           Vice President (principal
- -----------------------------   accounting officer of the
         Karen Dally            registrant)

  FRANK H. JELLINEK, JR.**      Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**        Director
- -----------------------------
      Jeffrey C. Leathe

   /S/  MICHAEL K. BRESSON      Director
- -----------------------------
     Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

      /S/  MICHAEL K. BRESSON   , by power of attorney.
**By: _____________________
         Michael K. Bresson

                                     II-16



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          LAB-LINE INSTRUMENTS, INC.

                                                     TIMOTHY B. WEISS**
                                          By: _______________________________
                                                      Timothy B. Weiss
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                         Title
          ---------                         -----

     TIMOTHY B. WEISS**         President (principal
- -----------------------------     executive officer of the
      Timothy B. Weiss            registrant)

     JEFFREY C. LEATHE**        Treasurer (principal
- -----------------------------   financial officer of the
      Jeffrey C. Leathe         registrant)

      PHILIP T. REID**          Controller (principal
- -----------------------------   accounting officer of the
       Philip T. Reid           registrant)

  FRANK H. JELLINEK, JR.**      Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**        Director
- -----------------------------
      Jeffrey C. Leathe

   /S/  MICHAEL K. BRESSON      Director
- -----------------------------
     Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

      /S/  MICHAEL K. BRESSON   , by power of attorney.
**By: _____________________
         Michael K. Bresson

                                     II-17



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          LAB VISION CORPORATION

                                                    GLENN K. TAKAYAMA**
                                          By: _______________________________
                                                      Glen K. Takayama
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
  GLENN K. TAKAYAMA**    (principal executive officer
- ------------------------ of the registrant)
   Glenn K. Takayama

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Chief Financial Officer
      BRIAN WOOD**       (principal accounting officer
- ------------------------ of the
       Brian Wood          registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-18



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          MATRIX TECHNOLOGIES CORPORATION

                                                      GARY E. NELSON**
                                          By: _______________________________
                                                       Gary E. Nelson
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
    GARY E. NELSON**     (principal executive officer
- ------------------------ of the registrant)
     Gary E. Nelson

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Chief Financial Officer
   JOHN L. STOWELL**     (principal accounting officer
- ------------------------ of the
    John L. Stowell      registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-19



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          METAVAC LLC

                                          By:        MICHAEL KESSLER**
                                             -------------------------
                                                      Michael Kessler
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*



      Signature                                  Title
      ---------                                  -----
                    

  MICHAEL KESSLER**    President (principal executive officer of the registrant)
- ----------------------
   Michael Kessler

 JEFFREY C. LEATHE**   Treasurer (principal financial officer and principal
- ---------------------- accounting officer of the registrant)
  Jeffrey C. Leathe

 FRANK H. JELLINEK**   Manager
- ----------------------
  Frank H. Jellinek

 JEFFREY C. LEATHE**   Manager
- ----------------------
  Jeffrey C. Leathe

/s/ MICHAEL K. BRESSON Manager
- ----------------------
  Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-20



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          MICROGENICS CORPORATION

                                                      YUH-GENG TSAY**
                                          By: _______________________________
                                                       Yuh-Geng Tsay
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this amendment
to the post-effective registration statement has been signed by the following
persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
    YUH-GENG TSAY**      (principal executive officer
- ------------------------ of the registrant)
     Yuh-Geng Tsay

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Vice President Administration
                         and Chief Financial Officer
   LINDA M. LECHNER**    (principal accounting officer
- ------------------------ of the registrant)
    Linda M. Lechner

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-21



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          MOLECULAR BIOPRODUCTS, INC.

                                                      ROBERT ARNOLD**
                                          By: _______________________________
                                                       Robert Arnold
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
    ROBERT ARNOLD**      (principal executive officer
- ------------------------ of the registrant)
     Robert Arnold

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Controller (principal
   ANGELA M. EGNER**     accounting officer of the
- ------------------------ registrant)
    Angela M. Egner

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-22



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          NALGE NUNC INTERNATIONAL CORPORATION

                                                    ROBERT V. AHLGREN**
                                          By: _______________________________
                                                     Robert V. Ahlgren
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         Chief Executive Officer
   VERNER ANDERSEN**     (principal executive officer
- ------------------------ of the registrant)
    Verner Andersen

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Vice President-Finance
   JEAN C. MUCENSKI**    (principal accounting officer
- ------------------------ of the
    Jean C. Mucenski       registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-23



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          NATIONAL SCIENTIFIC COMPANY

                                                      CRAIG M. JACK**
                                          By: _______________________________
                                                       Craig M. Jack
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

       Signature                     Title
       ---------                     -----

                         President
    CRAIG M. JACK**      (principal executive officer
- ------------------------ of the registrant)
     Craig M. Jack

                         Treasurer (principal
  JEFFREY C. LEATHE**    financial officer of the
- ------------------------ registrant)
   Jeffrey C. Leathe

                         Vice President-Finance
   JEAN C. MUCENSKI**    (principal accounting officer
- ------------------------ of the
    Jean C. Mucenski       registrant)

FRANK H. JELLINEK, JR.** Director
- ------------------------
 Frank H. Jellinek, Jr.

  JEFFREY C. LEATHE**    Director
- ------------------------
   Jeffrey C. Leathe

/S/  MICHAEL K. BRESSON  Director
- ------------------------
   Michael K. Bresson
- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-24



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          THE NAUGATUCK GLASS COMPANY

                                                   HAROLD A. RACEVICIUS**
                                          By: _______________________________
                                                    Harold A. Racevicius
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

   HAROLD A. RACEVICIUS**      President (principal
- -----------------------------  executive officer of the
    Harold A. Racevicius       registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial officer of the
      Jeffrey C. Leathe        registrant)

   HARRY X. CASHIN, III**      Director of Finance
- -----------------------------  (principal accounting officer
    Harry X. Cashin, III       of the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

  /s/  MICHAEL K. BRESSON      Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-25



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          NERL DIAGNOSTICS CORPORATION

                                                  DONALD H. MCGLORY, JR.**
                                          By: _______________________________
                                                   Donald H. McGlory, Jr.
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

  DONALD H. MCGLORY, JR.**     President (principal
- -----------------------------  executive officer of the
   Donald H. McGlory, Jr.      registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial officer of the
      Jeffrey C. Leathe        registrant)

      DOUGLAS FISHER**         Controller/Operations Manager
- -----------------------------  (principal accounting officer
       Douglas Fisher          of the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-26



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          OWL SEPARATION SYSTEMS, INC.

                                                      STEPHEN NORTON**
                                          By: _______________________________
                                                       Stephen Norton
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

      STEPHEN NORTON**         President (principal
- -----------------------------  executive officer of the
       Stephen Norton          registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial officer of the
      Jeffrey C. Leathe        registrant)

     KEITH BLESSINGTON**       Manager of Accounting
- -----------------------------  (principal accounting
      Keith Blessington        officer of the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-27



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          REMEL INC.

                                                       SUSAN GARAY**
                                          By: _______________________________
                                                       Susanne Garay
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.**

          Signature                        Title
          ---------                        -----

        SUSAN GARAY**          President (principal
- -----------------------------  executive officer of the
         Susan Garay           registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial officer of the
      Jeffrey C. Leathe        registrant)

     RONALD F. NUTTING**       Vice President--Finance
- -----------------------------  (principal accounting
      Ronald F. Nutting        officer of the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-28



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          RICHARD-ALLAN SCIENTIFIC COMPANY

                                                      DAVID SANFORD**
                                          By: _______________________________
                                                       David Sanford
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

       DAVID SANFORD**         President (principal
- -----------------------------  executive officer of the
        David Sanford          registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial officer of the
      Jeffrey C. Leathe        registrant)

        BRIAN WOOD**           Vice President--Finance
- -----------------------------  (principal accounting
         Brian Wood            officer of the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-29



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          ROBBINS SCIENTIFIC CORPORATION

                                                       GARY NELSON**
                                          By: _______________________________
                                                        Gary Nelson
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

        GARY NELSON**          President (principal
- -----------------------------  executive officer of the
         Gary Nelson           registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial officer of the
      Jeffrey C. Leathe        registrant)

       JOHN STOWELL**          Chief Financial Officer
- -----------------------------  (principal accounting
        John Stowell           officer of the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-30



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          SAMCO SCIENTIFIC CORPORATION

                                                      MARK F. STUPPY**
                                          By: _______________________________
                                                       Mark F. Stuppy
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

      MARK F. STUPPY**         President (principal
- -----------------------------  executive officer of the
       Mark F. Stuppy          registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial officer of the
      Jeffrey C. Leathe        registrant)

    HARRY MANOUSHAGIAN**       Controller (principal
- -----------------------------  accounting officer of
     Harry Manoushagian        the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /S/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-31



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          SEPARATION TECHNOLOGY, INC.

                                                      /s/ JAMI MEEKS**
                                          By: _______________________________
                                                         Jami Meeks
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

        JAMI MEEKS **          President (principal
- -----------------------------  executive officer of the
         Jami Meeks            registrant)

    JEFFREY C. LEATHE **       Treasurer (principal
- -----------------------------  financial officer and
      Jeffrey C. Leathe        principal accounting officer
                               of the registrant)

     FRANK H. JELLINEK**       Director
- -----------------------------
      Frank H. Jellinek

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/ MICHAEL K. BRESSON      Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-32



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          SERADYN INC.

                                                     /s/ MARK ROBERTS**
                                          By: _______________________________
                                                        Mark Roberts
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

       MARK ROBERTS **         President (principal
- -----------------------------  executive officer of the
        Mark Roberts           registrant)

    JEFFREY C. LEATHE **       Treasurer (principal
- -----------------------------  financial officer and
      Jeffrey C. Leathe        principal accounting officer
                               of the registrant)

    FRANK H. JELLINEK **       Director
- -----------------------------
      Frank H. Jellinek

    JEFFREY C. LEATHE **       Director
- -----------------------------
      Jeffrey C. Leathe

   /S/ MICHAEL K. BRESSON      Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-33



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          APOGENT TRANSITION CORP.

                                                  FRANK H. JELLINEK, JR.**
                                          By: _______________________________
                                                   Frank H. Jellinek, Jr.
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

  FRANK H. JELLINEK, JR.**     President (principal
- -----------------------------  executive officer of the
   Frank H. Jellinek, Jr.      registrant)

     JEFFREY C. LEATHE**       Vice President and Treasurer
- -----------------------------  (principal financial officer
      Jeffrey C. Leathe        and principal accounting
                               officer of the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-34



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          VACUUM PROCESS TECHNOLOGY, INC.

                                                      STEVE ERIKSSON**
                                          By: _______________________________
                                                       Steve Eriksson
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

      STEVE ERIKSSON**         President (principal
- -----------------------------  executive officer of the
       Steve Eriksson          registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial officer of the
      Jeffrey C. Leathe        registrant)

       THOMAS LAWLER**         Controller (principal
- -----------------------------  accounting officer of
        Thomas Lawler          the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-35



                                  SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Post-Effective
Amendment No. 1 to its registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Portsmouth, State of New
Hampshire, on June 14, 2002.

                                          FOREFRONT DIAGNOSTICS, INC.

                                                   /s/ JEFFERY C. KONECKE
                                          By: _______________________________
                                                     Jeffery C. Konecke
                                                         President

   Pursuant to the requirements of the Securities Act of 1933, this
post-effective amendment to the registration statement has been signed by the
following persons in the capacities and on the date indicated.*

          Signature                        Title
          ---------                        -----

   /s/ JEFFERY C. KONECKE      President (principal
- -----------------------------  executive officer of the
     Jeffery C. Konecke        registrant)

     JEFFREY C. LEATHE**       Treasurer (principal
- -----------------------------  financial and accounting
      Jeffrey C. Leathe        officer of the registrant)

  FRANK H. JELLINEK, JR.**     Director
- -----------------------------
   Frank H. Jellinek, Jr.

     JEFFREY C. LEATHE**       Director
- -----------------------------
      Jeffrey C. Leathe

   /s/  MICHAEL K. BRESSON     Director
- -----------------------------
     Michael K. Bresson

- --------
* Each of these signatures is affixed as of June 14, 2002.

         /s/ MICHAEL K. BRESSON
**By: ________________________________, by power of attorney.
             Michael K. Bresson


                                     II-36



                           APOGENT TECHNOLOGIES INC.
               (the "Registrant") and its Guarantor Subsidiaries
                         (Commission File No. 1-11091)

                                 EXHIBIT INDEX
                                      TO
                       POST-EFFECTIVE AMENDMENT NO. 1 TO
                        FORM S-3 REGISTRATION STATEMENT
                        (Commission File No. 333-75834)



Exhibit                                                                                           Filed
Number                    Description                     Incorporated Herein By Reference To    herewith
- -------                   -----------                     -----------------------------------    --------
                                                                                        

3.1(a)  Composite Restated Articles of Incorporation    Exhibit 3.1 to the Registrant's
        of the Registrant, as amended through           Quarterly Report on Form 10-Q
        February 5,                                     for the quarter ended December 31, 2000.

3.1(b)  Articles of Amendment containing                Exhibit 3.1(b) to the Registrant's
        Certificate of Designation, Preferences and     Form 10-K filed for the fiscal year
        Rights of Series A Preferred Stock              ended September 30, 2000.

 3.2    Bylaws of the Registrant, as amended as of      Exhibit 3.2 to the Registrant's
        January 30,                                     Quarterly Report on Form 10-Q
                                                        for the period ended December 31, 2000.

 4.1    Indenture, dated October 10, 2001, between      Exhibit 99.2 to the Registrant's
        Apogent Technologies Inc., the Subsidiary       Current Report on Form 8-K dated
        Guarantor parties thereto, and The Bank of      October 11, 2001.
        New York, as Trustee

 4.2    Resale Registration Rights Agreement, dated     Exhibit 4.10 to the Registrant's Form
        as of October 10, 2001, among Apogent           10-K filed for the fiscal year ended
        Technologies Inc., Subsidiary Guarantors and    September 30, 2001.
        Lehman Brothers Inc., Credit Suisse First
        Boston Corporation; Bank of America
        Securities LLC; ABN AMRO Rothschild
        LLC and UBS Warburg LLC (collectively, as
        Initial Purchasers)

 4.3    Purchase Agreement, dated October 3, 2001,      Exhibit 4.8 to the Registrant's Form
        between Apogent Technologies, Subsidiary        10-K filed for the fiscal year ended
        Guarantors and and Lehman Brothers Inc.,        September 30, 2001.
        Credit Suisse First Boston Corporation; Bank
        of America Securities LLC; ABN AMRO
        Rothschild LLC and UBS Warburg LLC
        (collectively, as Initial Purchasers)

  5     Opinion letter of Quarles & Brady LLP as to     Exhibit 5 to Registration Statement
        the legality of the securities being registered No. 333-75834, filed December 21, 2001.

  8     Opinion letter of Quarles & Brady LLP as to     Exhibit 8 to Registration Statement
        tax matters affecting the securities being      No. 333-75834, filed December 21, 2001.
        registered

  12    Statements regarding computation of ratio of    Exhibit 12 to Registration Statement
        earnings to fixed charges                       No. 333-75834, filed December 21, 2001.

  23    Consent of KPMG LLP                                                                         X

  24    Power of Attorney                               See Signatures Pages to Registration
                                                        Statement
                                                        No. 333-75834.

  25    Statement of Eligibility on Form T-1 of The     Exhibit 25 to Amendment No. 1 to
        Bank of New York                                Registration Statement No. 333-75834.