EXHIBIT 2.2(A)

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


                               MERGER AGREEMENT

                           DATED AS OF JULY 9, 1998

                                 BY AND AMONG

                     INNOVATIVE VALVE TECHNOLOGIES, INC.,

                          COLLIER ACQUISITION, INC.,

                                      AND

                         COLLIER EQUIPMENT CORPORATION


                                      AND

                         THE STOCKHOLDERS NAMED HEREIN

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

                               MERGER AGREEMENT

            THIS MERGER AGREEMENT (the "Agreement") is entered into as of the
9th day of July, 1998, by and among INNOVATIVE VALVE TECHNOLOGIES, INC., a
Delaware corporation ("Invatec"), COLLIER ACQUISITION, INC., a Delaware
corporation and a wholly-owned subsidiary of Invatec ("Invatec Sub"), ROBERT T.
COLLIER, JR., an individual whose address is 15806 Punta Espada, Corpus Christi,
Texas 78418 ("Mr. Collier"), FRANK H. GORE, an individual whose address is 15357
Mutiny Court, Corpus Christi, Texas 78418 ("Mr. Gore"), (Mr. Collier and Mr.
Gore being sometimes hereinafter referred to collectively as the "Stockholders"
and individually as a "Stockholder"), and COLLIER EQUIPMENT CORPORATION, a Texas
corporation whose address is 1150 Southern Minerals Road, Corpus Christi, Texas
78409 (the "Company"). Invatec, Invatec Sub, the Stockholders and the Company
are sometimes hereinafter referred to collectively as the "Parties" or
individually as a "Party."

                            PRELIMINARY STATEMENT


            WHEREAS, (a) Mr. Collier is the legal and beneficial owner and
holder of two thousand five hundred fifty (2,550) shares of the Common Stock of
the Company, and (b) Mr. Gore is the legal and beneficial owner and holder of
two thousand four hundred fifty (2,450) shares of the Common Stock of the
Company, which constitutes all of the issued and outstanding Company Capital
Stock; and

            WHEREAS, the Parties have determined that it is in their best
interests to effect a merger pursuant to which the Company will merge with and
into Invatec Sub on the terms and conditions set forth herein (such merger being
the "Acquisition"); and

         WHEREAS, the Parties intend for the Acquisition to qualify as a
tax-free reorganization under Section 368(a)(2)(D) of the Internal Revenue Code
of 1986, as amended; and

                  NOW, THEREFORE, in consideration of the premises and the
mutual covenants, agreements, representations, warranties and undertakings
contained herein, and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Parties hereby agree as
follows:

                  PARAGRAPH 5. CERTAIN DEFINED TERMS. As used in this Agreement,
the following terms have the meanings assigned to them below in this PARAGRAPH
1. Capitalized terms used in this Agreement and not defined below in this
PARAGRAPH 1 have the meanings assigned to them in the preamble of this
Agreement, the Preliminary Statement or ARTICLE IX of the Uniform Provisions, as
the case may be.

                  "ACCOUNTING FIRM" means KPMG Peat Marwick LLP, in Houston,
         Texas.

                  "ACQUIRED BUSINESS" means the business conducted by the
            Company. For purposes of ARTICLE VIII of the Uniform Provisions, the
            term "Acquired Business" shall include any business conducted by the
            Company during the twelve (12) months preceding the Closing Date.


                                     -1-

                  "ACQUISITION CONSIDERATION" has the meaning specified in
            SUBPARAGRAPH 2(A)(IV).

                  "AGREED CLOSING VALUE OF INVATEC STOCK" means Ten Dollars
            ($10.00) per share.

                  "CEILING AMOUNT" means Seven Million Two Hundred Thousand and
            No/100 Dollars ($7,200,000).

                  "CLOSING" has the meaning specified in PARAGRAPH 3.

                  "CLOSING DATE" means the date of this Agreement.

                  "COMPANY" has the meaning specified in the preamble of this
            Agreement.

                  "COMPANY CAPITAL STOCK" means the Common Stock, no par value,
            of the Company.

                  "COUNSEL FOR THE COMPANY AND THE STOCKHOLDER" means Law Office
            of David L. Smith, a professional corporation, of Corpus Christi,
            Texas.

                  "COUNSEL FOR INVATEC" means Boyer, Ewing & Harris Incorporated
            of Houston, Texas.

                  "CURRENT BALANCE SHEET" means the balance sheet of the Company
            as of the Current Balance Sheet Date.

                  "CURRENT BALANCE SHEET DATE" means May 31, 1998.

                  "CURRENT MARKET PRICE" means the average closing price per
            share of Invatec Common Stock (as reported by the principal
            securities exchange or trading market, as the case may be, on which
            the Invatec Common Stock is then traded) during the five consecutive
            trading days immediately preceding the date as of which the "Current
            Market Price" is to be determined. The Current Market Price as of
            the Closing Date is $7.313.

                  "DISCLOSURE STATEMENT" means the written statement executed by
            the Company and the Stockholders and delivered to Invatec prior to
            the execution and delivery of this Agreement by Invatec in which
            either (a) exceptions are taken to any of certain of the
            representations and warranties made by the Company or the
            Stockholders herein or (b) it is confirmed that no exception is
            taken to that representation and warranty. The content of the
            Disclosure Statement is incorporated into the Uniform Provisions in
            accordance with the references in the Uniform Provisions, which are
            incorporated herein as hereinafter set forth.

                  "EFFECTIVE TIME" means the Effective Time of the Merger, as
            such term is defined in SUBPARAGRAPH 2(A)(II).

                                     -2-

                  "EMPLOYMENT AGREEMENT" means the Employment Agreement to be
            entered into as of the Effective Time between Invatec and Mr. Gore.

                  "ENVIRONMENTAL CLAIMS" shall mean all Damage Claims and all
            Third Party Claims which relate expressly or by necessary
            implication to the environment or Environmental Laws.

                  "GENERAL CLAIMS" shall mean all Damage Claims and all Third
            Party Claims which are not Environmental Claims.

                  "INDEBTEDNESS" means all items, except for items of capital
            stock, surplus, general contingency, or deferred tax liabilities,
            which in accordance with GAAP would be included on the liability
            side of the balance sheet of the Company at such time other than
            accounts payable incurred in the Ordinary Course of Business and
            other expenses and trade payables incurred in the Ordinary Course of
            Business. The Company did not have any Indebtedness at the Current
            Balance Sheet Date, other than the Indebtedness to Stockholders
            described in SCHEDULE II.

                  "INITIAL FINANCIAL STATEMENTS" means (a) the balance sheets of
            the Company as of December 31, 1997, 1996 and 1995, and the related
            statements of operations and retained earnings for each of the
            Company's fiscal years in the three-year period ended December 31,
            1997, and (b) the Current Balance Sheet and the related statements
            of operations for the five (5) months ended on the Current Balance
            Sheet Date, which the Company has delivered to Invatec. The
            Company's financial statements for the five-month period ended May
            31, 1998, and the one-year periods ended December 31, 1997 and
            December 31, 1996, are attached hereto as EXHIBIT A.

                  "INVATEC SUB" has the meaning set forth in the preamble of
            this Agreement.

                  "MERGER" means a transaction as a result of which the
            Acquisition is effected and in which the Company is merged with and
            into Invatec Sub.

                  "ORDINARY COURSE OF BUSINESS" means the ordinary course of the
            business of the Company, consistent with past customs and practice
            (including with respect to quantity and frequency).

                  "PRO RATA SHARE" of a Stockholder means: fifty-one percent
            (51.0%) in the case of Mr. Collier, and forty-nine percent (49.0%)
            in the case of Mr. Gore.

                  "SUBSEQUENT MEASUREMENT DATE" means the one-year anniversary
            of the Effective Time.

                  "SURVIVING COMPANY" means Invatec Sub, which is to be
            designated in the Certificates of Merger as the Surviving Company.

                                     -3-

                  "THRESHOLD AMOUNT" means (a) Fifty Thousand Dollars ($50,000)
            for Environmental Claims and (b) Seventy-Two Thousand Dollars
            ($72,000) for General Claims.

                  "UNIFORM PROVISIONS" means the Uniform Provisions attached
            hereto as ANNEX 1.

                  "WORKING CAPITAL" means the current assets minus the current
            liabilities of the Company determined in accordance with GAAP
            (calculated as provided in SCHEDULE I attached hereto). Current
            liabilities shall expressly EXCLUDE current debt, current maturities
            of long-term Indebtedness, and the current portion of obligations
            under capital leases. The Working Capital at the Current Balance
            Sheet Date is One Million Two Hundred Seventeen Thousand Dollars
            ($1,217,000), determined as provided in SCHEDULE I attached hereto.

            PARAGRAPH 6. THE ACQUISITION. (A) THE MERGER. (i) CERTIFICATES OF
MERGER. Subject to the terms and conditions hereof, Invatec Sub will cause a
Certificate of Merger to be duly executed and delivered on the Closing Date and
filed on or promptly after the Closing Date with the Secretary of State of
Delaware, and the Company will cause a Certificate of Merger to be duly executed
and delivered on the Closing Date and filed on or promptly after the Closing
Date with the Secretary of State of Texas.

                  (ii) THE EFFECTIVE TIME. The "Effective Time" will be upon (a)
the filing of the Certificates of Merger with the Secretaries of State of
Delaware and Texas, and (b) issuance by the Secretaries of State of Delaware and
Texas of Certificates of Merger with respect thereto, and in any event, on or as
promptly as practicable after the Closing Date.

                  (iii) CERTAIN EFFECTS OF THE MERGER. At and as of the
Effective Time (1) the Company will be merged with and into Invatec Sub in
accordance with the provisions of the Delaware General Corporation Law, (2) the
Company will cease to exist as a separate legal entity, (3) Invatec Sub will be
the Surviving Company and, as such, will, all with the effect provided by the
Delaware General Corporation Law (a) possess all the properties and rights, and
be subject to all the restrictions, duties and obligations, of the Company and
Invatec Sub and (b) be governed by the laws of the State of Delaware, (4) the
Charter Documents of Invatec Sub then in effect will become and thereafter
remain (until changed in accordance with (a) applicable law (in the case of the
Certificate of Incorporation) or (b) their terms (in the case of the Bylaws))
the Charter Documents of the Surviving Company, except that the Certificate of
Incorporation shall be amended to change the name of the Surviving Company to
"CECORP, Inc.," (5) the initial member of the Board of Directors of the
Surviving Company will be William E. Haynes, and he will hold the office of
director of the Surviving Company, subject to the provisions of the applicable
laws of the State of Delaware and the Charter Documents of the Surviving
Company, and (6) the initial officers of the Surviving Company will be as set
forth below, and each of those persons will serve in each office specified for
that person below, subject to the provisions of the Charter Documents of the
Surviving Company, until that person's successor is duly elected to, and, if
necessary, qualified for, that office:

                                     -4-

                    OFFICE:                               NAME:

Chairman of the Board & Chief Executive Officer.      William E. Haynes
President.......................................      Frank H. Gore
Chief Financial Officer, Senior Vice President,
Treasurer and Secretary.........................      Charles F. Schugart
Vice President & Assistant Secretary............      Douglas R. Harrington, Jr.
Vice President & Assistant Secretary............      Frank L. Lombard
Vice President & Assistant Secretary............      John L. King

            (iv) EFFECT OF THE MERGER ON COMPANY CAPITAL STOCK. As of the
Effective Time, as a result of the Merger and without any action on the part of
any holder thereof:

            (1) the shares of Company Capital Stock issued and outstanding
      immediately prior to the Effective Time will be converted into the right
      to receive, subject to the provisions of PARAGRAPH 5 and PARAGRAPH 6,
      without interest, on surrender of the certificates evidencing those
      shares, the following (the "Acquisition Consideration"):

                  (i) in cash or other immediately available funds, the
            aggregate amount of Three Million Eleven Thousand Five Hundred
            Seventy-Four and 77/100 Dollars ($3,011,574.77), determined in the
            manner set forth in SCHEDULE II attached hereto; and

                  (ii) Three Hundred Sixty Thousand (360,000) shares of Invatec
            Common Stock, determined in the manner set forth in SCHEDULE II
            attached hereto;

      whereupon all such shares of Company Capital Stock shall cease to be
      outstanding and to exist, and shall be canceled and retired;

            (2) each share of Company Capital Stock held in the treasury of the
      Company shall cease to be outstanding and to exist and shall be canceled
      and retired; and

            (3) each share of capital stock of Invatec Sub issued and
      outstanding immediately prior to the Effective Time will be converted into
      one share of common stock of the Surviving Company and the common stock of
      the Surviving Company issued on that conversion will constitute all the
      issued and capital stock of the Surviving Company.

Each holder of a certificate representing shares of Company Capital Stock
immediately prior to the Effective Time (which Stockholders hereby covenant and
agree shall only be Stockholders) will, as of the Effective Time and thereafter,
cease to have any rights respecting those shares other than the right to
receive, subject to the provisions of PARAGRAPH 5 and PARAGRAPH 6, such holder's
pro rata share of the Acquisition Consideration.

      Invatec will cause its transfer agent to deliver to each Stockholder the
certificate evidencing such Stockholder's shares of Invatec Common Stock as
promptly as practicable after Closing;

                                     -5-

however, such Stockholder shall be treated for all purposes as having been the
record holder of such shares as of the Effective Time.

      SCHEDULE II attached hereto sets forth the manner in which the amount of
the Acquisition Consideration has been determined.

            (v) DELIVERY, EXCHANGE AND PAYMENT. On the Closing Date, the
Stockholders, as the holders of the certificates representing all of the
outstanding shares of Company Capital Stock, will receive, on surrender of those
certificates (duly endorsed in blank, or accompanied by stock powers in blank
duly executed by Stockholders, and with all necessary transfer tax and other
revenue stamps, acquired at Stockholders' expense, affixed and canceled) to
Invatec, free and clear of any restrictions or conditions to transfer or
assignment, rights of first refusal, mortgages, liens, pledges, charges,
encumbrances, equities, claims, covenants, conditions, restrictions, options or
agreements, subject to the provisions of PARAGRAPH 5 and PARAGRAPH 6, the
Acquisition Consideration. Until any certificate representing Company Capital
Stock has been surrendered and replaced pursuant to this SUBPARAGRAPH 2(A)(V),
that certificate will, for all purposes, be deemed to evidence only the right to
receive the pro rata share of the Acquisition Consideration evidenced thereby.
Each Stockholder shall cure any deficiencies in the endorsement of the
certificates or other documents of conveyance respecting, or in the stock powers
accompanying, the certificates representing Company Capital Stock surrendered by
such Stockholder. Notwithstanding any provisions of this Agreement to the
contrary, the Threshold Amount shall not apply to any Damage Claims arising from
the failure to pay the Acquisition Consideration, or the failure to make any of
the payments due under PARAGRAPH 5 or PARAGRAPH 6.

      (B) INCOME AND OTHER TAXES; TRANSACTION EXPENSES. Stockholders shall pay
all income, documentary, transfer, stamp, revenue or other taxes arising out of
the transfer, surrender or cancellation of the Company Capital Stock or receipt
of payments therefor, or any consideration delivered in connection therewith.
Neither Invatec, the Surviving Company nor the Company shall be responsible for
any business, occupation, income, withholding or similar tax, or any taxes of
any kind, of any Stockholder. Invatec, on the one hand, and the Stockholders, on
the other hand, will each pay their respective legal, accounting, tax, broker's
or other advisors' expenses incurred in pursuing and consummating the
Acquisition.

      (C) COMPANY DEBT LIMITATION; STOCKHOLDER DEBT. Immediately prior to
Closing the Stockholders shall cause the Company to pay all of its Indebtedness,
other than the Indebtedness in the amount of Five Hundred Eighty-Eight Thousand
Four Hundred Twenty-Five and 23/100 Dollars ($588,425.23) owed to the
Stockholders, which Invatec shall pay or cause the Company to pay
contemporaneously with the Acquisition Consideration. Except for salary accrued
in the Ordinary Course of Business and the Indebtedness described in the
immediately preceding sentence, on the Closing Date there will not be any
Indebtedness owed by the Company to any Stockholder or any affiliate of any
Stockholder, and each Stockholder and each affiliate of each Stockholder shall
repay to the Company at Closing the Indebtedness owed by such Stockholder or
such affiliate, as applicable, to the Company.

      (D) FORWARD SUBSIDIARY MERGER TAX REPRESENTATIONS OF THE COMPANY AND
STOCKHOLDERS. The Company and the Stockholders hereby represent and warrant the
following to be true and correct as of the Effective Time:

                                     -6-

            (i) The fair market value of the Invatec Common Stock and other
      consideration received by the Stockholders will be approximately equal to
      the fair market value of the Company Capital Stock surrendered in the
      Acquisition.

            (ii) There is no plan or intention of either Stockholder to have
      Invatec redeem, or have a party related to Invatec acquire, shares of
      Invatec Common Stock received in the Acquisition which would reduce the
      Stockholder's ownership of a number of shares of Invatec Common Stock
      received in the Acquisition to a number of shares having a value, as of
      the date of the Acquisition, of less than 50% of the sum of (a) the value
      at the Effective Time of all the Company Capital Stock held immediately
      prior to the Acquisition by the Stockholders and (b) the value at the
      Effective Time of any other instruments (such as debt of the Company which
      is guaranteed by the Stockholder) which are classified for federal income
      tax purposes as stock of the Company (collectively, "Shares") and which
      are held immediately prior to the Acquisition by the Stockholder. For
      purposes of this representation and the representation set forth in
      PARAGRAPH 2(E)(II) below, shares of Company Capital Stock outstanding
      immediately prior to the Acquisition include shares redeemed prior to the
      Acquisition by reason of this Agreement or otherwise as part of the
      Acquisition, and the value of all shares of Company Capital Stock
      outstanding immediately prior to the Acquisition shall be determined with
      regard to any extraordinary distributions (i.e., distributions with
      respect to shares of Company Capital Stock other than regular, normal
      dividends) by the Company by reason of this Agreement or otherwise as part
      of the Acquisition. For purposes of this representation and the
      representation set forth in PARAGRAPH 2(E) below, a party is related to
      Invatec if such party and Invatec would be treated as related parties
      within the meaning of Treasury Regulations Section 1.368-1(e)(3).

            (iii) Invatec Sub will acquire at least 90 percent of the fair
      market value of the net assets and at least 70 percent of the fair market
      value of the gross assets held by the Company immediately prior to the
      Acquisition. For purposes of this representation, amounts paid by the
      Company to dissenters, amounts paid by the Company to Stockholders who
      receive cash or other property, amounts used by the Company to pay
      reorganization expenses, and all redemptions and distributions (except for
      regular, normal dividends, if any) made by the Company immediately
      preceding the Acquisition, will be included as assets of the Company held
      immediately prior to the Acquisition.

            (iv) The liabilities of the Company assumed by Invatec Sub and the
      liabilities to which the transferred assets of the Company are subject
      were incurred by the Company in the Ordinary Course of Business.

            (v) The Company and the Stockholders will pay their respective
      expenses, if any, incurred in connection with the Acquisition.

            (vi) There is no intercorporate indebtedness existing between
      Invatec and the Company or between Invatec Sub and the Company that was
      issued, acquired or will be settled at a discount.

                                     -7-

            (vii) The Company is not an investment company. For purposes of this
      representation, an investment company means a regulated investment company
      (as defined in the Code), a real estate investment trust (as defined in
      the Code), or a corporation, 50 percent or more of the value of whose
      total assets are stock and securities and 80 percent or more of the value
      of whose total assets are assets held for investment within the meaning of
      Section 368(a)(2)(F)(iii) of the Code.

            (viii)The Company is not under the jurisdiction of a court in a case
      under Title 11 of the United States Code, or a receivership, foreclosure,
      or similar proceeding in a federal or state court.

            (ix) At the Effective Time, the fair market value of the assets of
      the Company will exceed the sum of its liabilities, plus the amount of
      liabilities, if any, to which its assets are subject.

            (x) None of the compensation received by any stockholder-employees
      of the Company will be separate consideration for, or allocable to, any of
      their shares of Company Capital Stock. None of the shares of Invatec
      Common Stock to be received by any stockholder-employee will be separate
      consideration for, or allocable to, any employment agreements or
      agreements not to compete, and the compensation paid to any
      stockholder-employee will be for services actually rendered and will be
      commensurate with amounts paid to third parties bargaining at arm's length
      for similar services.

      (E) FORWARD SUBSIDIARY MERGER TAX REPRESENTATIONS OF INVATEC. Invatec
hereby represents and warrants the following to be true and correct as of the
Effective Time:

            (i)   Invatec Sub is a wholly-owned subsidiary of Invatec;

            (ii) The fair market value of the Invatec Common Stock and other
      consideration received by the Stockholders will be approximately equal to
      the fair market value of the Company Capital Stock surrendered in the
      Acquisition.

            (iii) There is no plan or intention of Invatec to redeem, or have a
      party related to Invatec acquire, shares of Invatec Common Stock received
      in the Acquisition which would reduce the Stockholder's ownership of a
      number of shares of Invatec Common Stock received in the Acquisition to a
      number of shares having a value, as of the date of the Acquisition, of
      less than 50% of the sum of (a) the value at the Effective Time of all the
      Company Capital Stock held immediately prior to the Acquisition by the
      Stockholders and (b) the value at the Effective Time of any Shares, as
      defined in PARAGRAPH 2(D), which are held immediately prior to the
      Acquisition by the Stockholder.

            (iv) There is no intercorporate indebtedness existing between
      Invatec and the Company or between Invatec Sub and the Company that was
      issued, acquired or will be settled at a discount.

                                     -8-

            (v) None of the compensation received by any stockholder-employees
      of the Company will be separate consideration for, or allocable to, any of
      their shares of Company Capital Stock. None of the shares of Invatec
      Common Stock to be received by any stockholder-employee will be separate
      consideration for, or allocable to, any employment agreements or
      agreements not to compete, and the compensation paid to any
      stockholder-employee will be for services actually rendered and will be
      commensurate with amounts paid to third parties bargaining at arm's length
      for similar services.

      (F) TAX-FREE REORGANIZATION. The Parties hereby acknowledge and agree that
they are entering into this Agreement with the intention that the Acquisition
qualify as a tax-free reorganization for federal income tax purposes, although
the cash received by the Stockholders will be taxable. Each Party hereby
represents and warrants that it will not take any action which would disqualify
the Acquisition from such treatment; provided however, that in the event that
the Acquisition fails to qualify as a tax-free reorganization for any reason,
other than the breach of an express representation or warranty by a Party, then
the Stockholders shall pay and be solely responsible for any income taxes
assessed against Stockholders which result from such failure, and Invatec shall
pay and be solely responsible for all income taxes assessed against the Company
or the Surviving Company which result from such failure.

            PARAGRAPH 7. THE CLOSING. (A) TIME AND PLACE. On or before the
Closing Date, the Parties will take all actions necessary to effect the
Acquisition (all those actions collectively being the "Closing"). The Closing
will take place at the offices of Counsel for Invatec, located at Nine Greenway
Plaza, Suite 3100, Houston, Texas 77046, at 10:00 a.m., local time, or at such
later time on the Closing Date as Invatec shall specify by written notice to
Stockholders.

      (B) STOCKHOLDER' DELIVERIES. At or before the Closing, Stockholders shall
deliver or cause to be delivered to Invatec the following, all of which shall be
duly executed by all of the parties thereto, other than Invatec Sub, Invatec and
Invatec's third party lender, each of which shall be in form and content
acceptable to the Parties:

            (i) All of the stock certificates evidencing the Company Capital
      Stock, with all necessary transfer tax and other revenue stamps acquired
      and attached at the expense of the holder of such certificate, together
      with irrevocable stock powers in form and content acceptable to Invatec,
      duly authorized and executed by the record holder of each such stock
      certificate;

            (ii) An Affiliate Letter duly executed by each Stockholder with
      respect to such Stockholder's acquisition of Invatec Common Stock as part
      of the Acquisition Consideration;

            (iii) The Certificate of Merger to be filed in Texas;

            (iv) The Certificate of Merger to be filed in Delaware;

            (v)   The Employment Agreement;

                                     -9-

            (vi) Resignations of all directors and officers of the Company,
      effective as of the Effective Time;

            (vii) Such subordination or other agreements in such form as
      Invatec's lender may require with respect to subordination of any landlord
      liens or similar liens for each of the Company's leased locations;

            (viii)All original promissory notes or other debt instruments
      executed by the Company to any Stockholder or any affiliate of any
      Stockholder, marked "Paid in Full;"

            (ix) Payment of any outstanding amounts owed by any Stockholder or
      any affiliate of any Stockholder to the Company, as expressly set forth in
      PARAGRAPH 2(C) hereof;

            (x) An opinion of counsel issued by Counsel for the Company and the
      Stockholders;

            (xi) No Withholding Certificate duly executed by the Stockholders;

            (xii) Certificate of the Secretary or Assistant Secretary of the
      Company, certifying as to copies of the Articles of Incorporation and
      Bylaws of the Company, and the resolutions of the Board of Directors of
      the Company and the Stockholders, in form and content reasonably
      acceptable to Invatec, authorizing the transactions contemplated herein;

            (xiii)A Waiver and Termination Agreement terminating any existing
      shareholder, voting or similar agreement between or among the Stockholders
      and the Company, or any of them, relating to the Company Capital Stock,
      and waiving the rights of the parties thereunder, in form and content
      reasonably acceptable to Invatec;

            (xiv) All governmental, lender or other third party approvals to be
      delivered by Stockholders as a condition to closing pursuant to ARTICLE V
      of the Uniform Provisions (including without limitation Dresser
      Industries, Inc.), in form and content reasonably acceptable to Invatec;
      and

            (xv) All other items required to be delivered hereunder or as may be
      requested or which are necessary or would reasonably facilitate
      consummation of the transactions contemplated hereby, including such
      certificates as are necessary from third parties to establish the truth
      and accuracy of Invatec's representations and warranties set forth herein.

      (C) INVATEC'S OBLIGATIONS. At the Closing, Invatec will deliver or cause
to be delivered to the Stockholders the following, all of which shall be duly
executed by Invatec and Invatec Sub, each of which shall be in form and content
acceptable to the Parties:

                                     -10-

            (i)   The cash portion of the Acquisition Consideration;

            (ii) Payment by the Company to the Stockholders of the Indebtedness
      in the amount of Five Hundred Eighty-Eight Thousand Four Hundred
      Twenty-Five and 23/100 Dollars ($588,425.23), as contemplated in SCHEDULE
      II;

            (iii) The shares of Invatec Common Stock to be delivered hereunder
      as a portion of the Acquisition Consideration;

            (iv) The Certificate of Merger to be filed in Texas;

            (v) The Certificate of Merger to be filed in Delaware;

            (vi) The Employment Agreement;

            (vii) An opinion of counsel issued by Counsel for Invatec;

            (viii)Certificate of the Secretary or Assistant Secretary of Invatec
      certifying as to copies of the Certificate of Incorporation and Bylaws of
      Invatec attached thereto, and the resolutions of the members of the
      Executive Committee of the Board of Directors of Invatec, in form and
      content reasonably acceptable to Counsel for the Company and the
      Stockholders, authorizing the transactions contemplated herein;

            (ix) Certificate of the Secretary or Assistant Secretary of Invatec
      Sub certifying as to copies of the Certificate of Incorporation and Bylaws
      of Invatec Sub attached thereto, and the resolutions of the sole director
      and sole shareholder of Invatec Sub, in form and content reasonably
      acceptable to Counsel for the Company and the Stockholders, authorizing
      the transactions contemplated herein; and

            (x) All other items required to be delivered hereunder or as may be
      requested or which are necessary or would reasonably facilitate
      consummation of the transactions contemplated hereby, including such
      certificates as are necessary from third parties to establish the truth
      and accuracy of Invatec's representations and warranties set forth herein.

      (D) FURTHER ASSURANCES. At and after the Closing, each of the Parties
shall take all appropriate action and execute all documents of any kind which
may be reasonably necessary or desirable to carry out the transactions
contemplated hereby. Each Stockholder, at any time at or after the Closing, will
execute, acknowledge and deliver any further stock powers, deeds, bills of sale,
assignments and other assurances, documents and instruments of transfer
reasonably requested by Invatec, and will take any other action consistent with
the terms of this Agreement that may reasonably be requested by Invatec, for the
purpose of effecting the Acquisition.

                                     -11-

            PARAGRAPH 8. INCORPORATION OF UNIFORM PROVISIONS. The Uniform
Provisions hereby are incorporated in this Agreement by this reference and
constitute a part of this Agreement with the same force and effect as if set
forth at length herein, subject to the following revisions:

            (i) Section 2.17 is hereby deleting the reference to "SECTION 2.17
      OF THE DISCLOSURE STATEMENT" and substituting therefor a reference to
      "SECTIONS 2.13 AND 2.17 OF THE DISCLOSURE STATEMENT" and by inserting at
      the end of Section 2.17 the following:

            Notwithstanding any provision of this Section 2.17 to the contrary,
            the Stockholders shall not have any liability for any Damage Claims
            or Third Party Claims which arise from claims against the Company
            for goods sold or services provided, provided that such goods or
            services were sold and provided by the Company in a good and
            workmanlike manner in the Ordinary Course of Business and in
            compliance with applicable law and with the standards of ASME, the
            relevant manufacturers (when provided), and all of the Company's
            applicable professional certificates;

            (ii) Sections 2.28 is hereby amended by adding a new Subsection to
      the end thereof as follows:

            (h) Notwithstanding any provision of Section 2.27(d) or this Section
            2.28 to the contrary, the Parties hereby acknowledge and agree that
            the Stockholders shall not be liable for any breaches of the
            representations set forth in Subsections 2.27(d) and 2.28, to the
            extent of any Damage Claims or Third Party Claims resulting solely
            from a failure to comply with the provisions of ERISA, if (i) such
            failure to comply is caused by an error or omission of an
            independent third party service provider in connection with the
            implementation or administration of any Company ERISA Benefit Plan,
            and (ii) the Stockholders are unaware of the failure to comply as of
            the Closing Date;

            (iii) Article III is hereby amended by inserting a new Section 3.07
      at the end thereof as follows:

                  Section 3.07 SEC FILINGS; DISCLOSURE. Invatec has filed with
            the Securities and Exchange Commission all material forms,
            statements, reports and documents required to be filed by it under
            each of the Securities Act of 1933, as amended, the Securities
            Exchange Act of 1934, as amended, and the respective rules and
            regulations thereunder, all of which, as amended, if applicable,
            complied when filed in all material respects with all applicable
            requirements of the appropriate Act and the rules and regulations
            thereunder.

            (iv) Articles IV, V and XI are hereby deleted in their entirety;

                                     -12-

            (v) Section 6.04(a) is hereby deleted in its entirety, and
      substituted therefore is the following:

                  Section 6.04 LIMITATIONS ON DAMAGE CLAIMS. (a) In the event
            Invatec should have any Damage Claim hereunder following the
            Effective Time against any Stockholder which does not involve an
            Invatec Indemnified Loss (each such Damage Claim not involving an
            Invatec Indemnified Loss being an "Invatec Unindemnified Loss"),
            that Stockholder will not be liable to Invatec on account of that
            Invatec Unindemnified Loss unless the liability of that Stockholder
            in respect of that Invatec Unindemnified Loss, when aggregated with
            the liability of all Stockholders in respect of the sum of (i) all
            Invatec Unindemnified Losses and (ii) all Invatec Indemnified Losses
            under SECTION 7.02, exceeds, and only to the extent the aggregate
            amount of all those Invatec Unindemnified Losses and Invatec
            Indemnified Losses does exceed, the Threshold Amount. With respect
            to General Claims, after there have occurred aggregate Invatec
            Unindemnified Losses and Invatec Indemnified Losses in the amount of
            the Threshold Amount, the Stockholders will be obligated to
            indemnify the Invatec Indemnified Parties from and against further
            such Invatec Unindemnified Losses and Invatec Indemnified Losses up
            to the Ceiling Amount. With respect to Environmental Claims, after
            there have occurred aggregate Invatec Unindemnified Losses and
            Invatec Indemnified Losses in the amount of the Threshold Amount,
            the Stockholders will be obligated to indemnify the Invatec
            Indemnified Parties from and against further such Invatec
            Unindemnified Losses and Invatec Indemnified Losses up to an
            aggregate amount of One Hundred Thousand and No/100 Dollars
            ($100,000.00)); thereafter, the Stockholders will not be obligated
            to indemnify the Invatec Indemnified Parties from and against any
            further such Invatec Unindemnified Losses and Invatec Indemnified
            Losses until there have occurred additional aggregate Invatec
            Unindemnified Losses and Invatec Indemnified Losses in the amount of
            One Hundred Thousand and No/100 Dollars ($100,000.00), after which
            the Stockholders will once again be obligated to indemnify the
            Invatec Indemnified Parties from and against further such Invatec
            Unindemnified Losses and Invatec Indemnified Losses up to the
            Ceiling Amount. In no event shall (i) the aggregate liability of the
            Stockholders under this Agreement, including SECTION 7.02, exceed
            the Ceiling Amount or (ii) the aggregate liability of each
            Stockholder under this Agreement, including SECTION 7.02, exceed
            that Stockholder's Pro Rata Share of the Ceiling Amount. For
            purposes of determining the amount of Invatec Unindemnified Losses
            and Invatec Indemnified Losses, no effect will be given to any
            resulting Tax benefit to Invatec or any other Invatec Indemnified
            Party nor any insurance proceeds received by any Invatec Indemnified
            Party as compensation for any claim except to the extent of any
            insurance proceeds actually received by Invatec or the Surviving
            Company, and to the extent permitted by applicable law without
            impacting the insurance coverage of Invatec or the Surviving
            Company, their respective rights to such proceeds, or the
            subrogation rights of any insurer. If an Invatec Indemnified Party
            receives payment from a Stockholder hereunder with respect to a
            claim for which the Invatec Indemnified Party has or may have
            insurance, then the Invatec Indemnified Party shall assign to

                                     -13-

            such Stockholder, without recourse, representation or warranty, any
            claims the Invatec Indemnified Party has under such insurance, and
            shall cooperate with such Stockholder, at such Stockholder's sole
            cost and expense, to the extent reasonably requested by such
            Stockholder in pursuing such claim.

            (vi) Article VI is hereby amended by adding a new Section 6.05,
      which shall provide as follows:

                  Section 6.05 CREDIT FOR YEARS OF SERVICE. For purposes of
            providing benefits to employees of the Company after the Effective
            Time, Invatec shall, to the extent permitted by applicable law,
            credit such employees for years of service at the Company prior to
            the Effective Time for purposes of eligibility and benefit amounts
            or privileges paid or provided.

            (vii) Section 7.02(a) is hereby amended by inserting at the end
      thereof prior to parenthetical definition of "Invatec Indemnified Loss"
      the following:

            or (iii) notwithstanding any provision to the contrary contained
            herein, or any disclosure or disclaimer set forth in the Disclosure
            Statement, or any analysis, data or information contained in any
            environmental investigations, studies, audits, reviews and other
            analyses conducted by or on behalf of Invatec or any Subsidiary of
            Invatec, any Environmental Claim, regardless of whether such
            Environmental Claim is a breach of any representation or warranty
            hereunder.

            (viii)Section 7.06(a) is hereby deleted in its entirety, and
      substituted therefore is the following:

                  Section 7.06 LIMITATIONS ON INDEMNIFICATION. (a)
            Notwithstanding the provisions of SECTION 7.02, no Stockholder shall
            be required to indemnify or hold harmless any of the Invatec
            Indemnified Parties on account of any Invatec Indemnified Loss under
            SECTION 7.02 unless the liability of the Stockholders in respect of
            that Invatec Indemnified Loss, when aggregated with the liability of
            all Stockholders in respect of the sum of (i) all Invatec
            Unindemnified Losses and (ii) all Invatec Indemnified Losses under
            SECTION 7.02, exceeds, and only to the extent the aggregate amount
            of all those Invatec Unindemnified Losses and Invatec Indemnified
            Losses does exceed, the Threshold Amount. With respect to General
            Claims, after there have occurred aggregate Invatec Unindemnified
            Losses and Invatec Indemnified Losses in the amount of the Threshold
            Amount, the Stockholders will be obligated to indemnify the Invatec
            Indemnified Parties from and against further such Invatec
            Unindemnified Losses and Invatec Indemnified Losses up to the
            Ceiling Amount. With respect to Environmental Claims, after there
            have occurred aggregate Invatec Unindemnified Losses and Invatec
            Indemnified Losses in the amount of the Threshold Amount, the
            Stockholders will be obligated to indemnify the Invatec Indemnified
            Parties from and against further

                                     -14-

            such Invatec Unindemnified Losses and Invatec Indemnified Losses up
            to an aggregate amount of One Hundred Thousand and No/100 Dollars
            ($100,000.00); thereafter, the Stockholders will not be obligated to
            indemnify the Invatec Indemnified Parties from and against any
            further such Invatec Unindemnified Losses and Invatec Indemnified
            Losses until there have occurred additional aggregate Invatec
            Unindemnified Losses and Invatec Indemnified Losses in the amount of
            One Hundred Thousand and No/100 Dollars ($100,000.00), after which
            the Stockholders will once again be obligated to indemnify the
            Invatec Indemnified Parties from and against further such Invatec
            Unindemnified Losses and Invatec Indemnified Losses up to the
            Ceiling Amount. In no event shall (i) the aggregate liability of the
            Stockholders under this Agreement, including SECTION 7.02, exceed
            the Ceiling Amount, or (ii) the aggregate liability of each
            Stockholder under this Agreement, including SECTION 7.02, exceed
            that Stockholder's Pro Rata Share of the Ceiling Amount. For
            purposes of determining the amount of Invatec Indemnified Losses, no
            effect will be given to any resulting Tax benefit to any Invatec
            Indemnified Party nor any insurance proceeds received by any Invatec
            Indemnified Party as compensation for any claim except to the extent
            of any insurance proceeds actually received by Invatec or the
            Surviving Company, and to the extent permitted by applicable law
            without impacting the insurance coverage of Invatec or the Surviving
            Company, their respective rights to such proceeds, or the
            subrogation rights of any insurer. If an Invatec Indemnified Party
            receives payment from a Stockholder hereunder with respect to a
            claim for which the Invatec Indemnified Party has or may have
            insurance, then the Invatec Indemnified Party shall assign to such
            Stockholder, without recourse, representation or warranty, any
            claims the Invatec Indemnified Party has under such insurance, and
            shall cooperate with such Stockholder, at such Stockholder's sole
            cost and expense, to the extent reasonably requested by such
            Stockholder in pursuing such claim.

            (ix) Section 10.07 is hereby amended by (A) deleting therefrom all
      references to "Southern District of Texas, Houston Division" and
      substituting therefor the phrase "Southern District of Texas, Corpus
      Christi Division" and (B) deleting therefrom all remaining references
      to"Texas, County of Harris" and substituting therefor references to
      "Nueces County, Texas."

            PARAGRAPH 9. POST-CLOSING ADJUSTMENT TO PURCHASE PRICE. Within
ninety (90) days after the Closing Date, Invatec shall deliver to the
Stockholders an unaudited balance sheet of the Company, prepared as of the
Closing Date (the "Post-Closing Financial Statements"). These Post-Closing
Financial Statements shall become final and binding on the Parties on the 15th
day following receipt thereof by the Stockholder unless a Stockholder furnishes
written notice of his disagreement ("Notice of Disagreement") to Invatec prior
to such date. Any Notice of Disagreement shall specify in detail the nature of
any disagreement so asserted. If a Notice of Disagreement is sent by a
Stockholder to Invatec in accordance with this PARAGRAPH 5, then the
Post-Closing Financial Statements shall become final and binding upon the
Parties on the earlier to occur of: (i) the date the Parties resolve in writing
any differences they have with respect to any matter specified in the Notice of
Disagreement, or (ii) the date any disputed matters are finally resolved in
writing by the

                                     -15-

Accounting Firm. During the 10-day period following the delivery of a Notice of
Disagreement, the Parties shall seek in good faith to resolve in writing any
differences which they may have with respect to any matter specified in the
Notice of Disagreement. If, at the end of such 10-day period (or such longer
period of time as the Parties may agree upon in writing), the Parties have not
reached agreement on such matters, the matters which remain in dispute, together
with copies of this Agreement, the Post-Closing Financial Statements, and the
Notice of Disagreement, shall be submitted, within five (5) days following the
expiration of such 10-day period (or any agreed upon extension thereof), to the
Accounting Firm for review and resolution. In connection with such submission,
Invatec and each Stockholder shall promptly execute any waivers, releases,
indemnification agreements or fee agreements requested by the Accounting Firm.
All proceedings conducted by the Accounting Firm shall be conducted at the
offices of the Accounting Firm in Houston, Texas. The Accounting Firm shall
render a decision resolving the matters in dispute as soon as practicable
following the date of the submission to the Accounting Firm. The cost of any
proceeding (including the fees of the Accounting Firm but excluding the fees and
disbursements of each Party's independent auditors and counsel) pursuant to this
PARAGRAPH 5 shall be borne one-half by Invatec and one-half, jointly and
severally, by the Stockholders. The fees and disbursements of Stockholders'
independent auditors and counsel incurred in connection with this PARAGRAPH 5
shall be borne, jointly and severally, by Stockholders, and the fees and
disbursements of Invatec's independent auditors and counsel incurred in
connection with this PARAGRAPH 5 shall be borne by Invatec. The final
determination as described in any of the procedures set forth hereinabove shall
constitute the "Final Post-Closing Financial Statements." Stockholders hereby
agree, jointly and severally, to deliver to Invatec within ten (10) business
days of delivery of the Final Post-Closing Financial Statements to Invatec and
to Stockholders, an aggregate amount equal to the amount, if any, by which One
Million Two Hundred Seventeen Thousand Dollars ($1,217,000) exceeds the Working
Capital, as set forth in the Final Post-Closing Financial Statements, it being
hereby agreed that up to one-half (1/2) of the amount paid to Invatec by each
Stockholder may be paid in shares of Invatec Common Stock (valued at the Agreed
Closing Value of Invatec Stock). Conversely, Invatec hereby agrees to deliver to
each Stockholder, within ten (10) business days of delivery of the Final
Post-Closing Financial Statements to Invatec and to Stockholders, such
Stockholder's Pro Rata Share of the amount, if any, by which the Working
Capital, as set forth in the Final Post-Closing Financial Statements, exceeds
One Million Two Hundred Seventeen Thousand Dollars ($1,217,000), it being hereby
agreed that at least one-half (1/2) of the amount paid to each Stockholders
shall be paid in shares of Invatec Common Stock (valued at the Agreed Closing
Value of Invatec Stock). The Final Post-Closing Financial Statements shall also
set forth the amount of Indebtedness of the Company as of the Effective Time,
and the amount of cash delivered pursuant to SUBPARAGRAPH 2(A)(IV) hereof shall
be decreased by the amount of any Indebtedness other than the Indebtedness to
Stockholders described in SCHEDULE II. Payment of the appropriate amount shall
be made simultaneously with the payment based on Working Capital Adjustment
described above. Determinations hereunder shall be consistent with the
methodology reflected in SCHEDULES I and II.

      PARAGRAPH 10. POST-CLOSING ADJUSTMENT OF VALUE OF INVATEC COMMON STOCK.
Notwithstanding the foregoing or any provision hereof to the contrary, if the
Current Market Price as of the Subsequent Measurement Date is less than the
Agreed Closing Value of Invatec Stock, then Invatec will pay each Stockholder
for each share of Invatec Common Stock issued to such Stockholder in the
Acquisition (after giving effect to any adjustment pursuant to PARAGRAPH 5) and

                                     -16-

still owned by such Stockholder as of the Subsequent Measurement Date, the
amount by which the Agreed Closing Value of Invatec Stock exceeds the greater of
(a) the Current Market Price as of the Subsequent Measurement Date or (b) the
Current Market Price as of the Closing Date. The Parties acknowledge and agree
that the foregoing calculation cannot result in a payment to Stockholders
greater than $2.687 per share of Invatec Common Stock. At least one-half (1/2)
of the payment, if any, to be made by Invatec pursuant to this PARAGRAPH 6,
shall be made by Invatec issuing to each Stockholder Invatec Common Stock at a
per share price equal to the Current Market Price as of the Subsequent
Measurement Date. The Parties acknowledge and agree that no payment shall be due
from Invatec with respect to any shares of Invatec Common Stock sold prior to
the expiration of one year from the date hereof.

      PARAGRAPH 11. OFFSET. To the extent permitted by applicable law, and
subject to the limits on Damage Claims and on indemnification claims in SECTION
6.04 and SECTION 7.06 of the Uniform Provisions, all amounts due and owing to a
Stockholder under this Agreement shall be subject to offset by Invatec to the
extent of any damages incurred as a result of any Stockholder's breach of this
Agreement or any document, instrument, or agreement executed by any Stockholder
in connection herewith, commencing on the tenth (10th) day after Invatec sends
written notice to the Stockholders of the alleged breach, unless Stockholders
cure same within such 10-day period. Each Stockholder hereby acknowledges and
agrees that but for the right of offset contained in this PARAGRAPH 7, Invatec
would not have entered into this Agreement or any of the transactions
contemplated herein.

      PARAGRAPH 12.  SECURITIES LAWS.

      (A) EACH STOCKHOLDER'S REPRESENTATIONS AND WARRANTIES CONCERNING
SECURITIES. As of the date hereof, each Stockholder hereby makes the following
representations and warranties to and for the benefit of Invatec: (i) that such
Stockholder has been provided with copies of Invatec's Prospectus dated June 10,
1998, as supplemented (the "Prospectus"), and has been provided as much time and
opportunity as he deemed appropriate to review and study such materials, and to
consult with Invatec regarding the merits and risks of the transactions
contemplated by this Agreement; (ii) that such Stockholder has had adequate
opportunity to ask questions of and receive answers from the officers of Invatec
pertaining to the purchase of the Invatec Common Stock pursuant to this
Agreement, and (iii) all such questions have been answered to the satisfaction
of such Stockholder.

      (B) TRANSFER RESTRICTIONS. Mr. Gore hereby agrees that except for
transfers to immediate family members who agree to be bound by the restrictions
set forth in this PARAGRAPH 8(B) (or trusts for the benefit of a Stockholder or
family members, or trusts in which a Stockholder is both the grantor and the
beneficiary, the trustees of which so agree), for a period of twelve (12) months
from the Closing Date, Mr. Gore will not sell, assign, exchange, transfer,
appoint, or otherwise dispose of the shares of Invatec Common Stock received by
Mr. Gore pursuant to this Agreement. The certificates evidencing the Invatec
Common Stock delivered to Mr. Gore pursuant to this Agreement will bear a legend
substantially in the form set forth below and containing such other information
as Invatec may deem necessary or appropriate:

                                     -17-

      THE SHARES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD, ASSIGNED,
      EXCHANGED, TRANSFERRED, DISTRIBUTED, APPOINTED OR OTHERWISE DISPOSED OF
      WITHOUT THE WRITTEN CONSENT OF INVATEC, AND INVATEC SHALL NOT BE REQUIRED
      TO GIVE EFFECT TO ANY ATTEMPTED SALE, ASSIGNMENT, EXCHANGE, TRANSFER,
      DISTRIBUTION, APPOINTMENT OR OTHER DISPOSITION PRIOR TO THE EXPIRATION OF
      TWELVE (12) MONTHS FROM THE DATE OF THIS CERTIFICATE. UPON THE WRITTEN
      REQUEST OF THE HOLDER OF THIS CERTIFICATE, INVATEC AGREES TO REMOVE THIS
      RESTRICTIVE LEGEND (AND ANY STOP ORDER PLACED WITH THE TRANSFER AGENT)
      AFTER THE DATE SPECIFIED ABOVE.

Invatec represents and warrants to Mr. Collier that the shares of Invatec Common
Stock delivered to Mr. Collier in payment of the Acquisition Consideration will
be fully registered stock with the SEC, freely transferable by Mr. Collier at
any time without limitation, except as otherwise restricted under Rule 145
promulgated under the Securities Act and other applicable securities laws.

      PARAGRAPH 13. MULTIPLE COUNTERPARTS; FACSIMILE SIGNATURES. This Agreement
may be executed in multiple counterparts, each of which will be an original, but
all of which together will constitute one and the same instrument. For purposes
of the Agreement and all documents, instruments and agreements executed in
connection herewith, facsimile signatures shall be deemed to be original
signatures. In addition, if any Party executes facsimile copies of this
Agreement or any documents , instruments of agreements executed in connection
herewith, such copies shall be deemed originals.

            IN WITNESS WHEREOF, the Parties have executed this Agreement as of
the date first above written.

                                    INVATEC:

                                    INNOVATIVE VALVE TECHNOLOGIES, INC.

                                    By: _______________________________________
                                    John L. King, Vice President

                                    INVATEC SUB:

                                    COLLIER ACQUISITION, INC.

                                    By: _______________________________________
                                    John L. King, Vice President

                                    STOCKHOLDERS:

                                    ___________________________________

                                     -18-

                                    ROBERT T. COLLIER, JR.

                                    ___________________________________
                                    FRANK H. GORE

                                    THE COMPANY:

                                    COLLIER EQUIPMENT CORPORATION

                                     By:_____________________________
                                     Robert T. Collier, Jr.,  President

            The undersigned, the spouses of each of Mr. Collier and Mr. Gore,
are fully aware of, understand, and fully consent and agree to the provisions of
this Merger Agreement, and its binding effect upon any community or other
property interests that they may own in the Company Capital Stock (or
alternatively, in order to confirm that they have no right, title or interest,
legal or beneficial, in the shares of Company Capital Stock standing in the
names of Mr. Collier and Mr. Gore), and their awareness, understanding, consent
and agreement are evidenced by their execution hereof.


                                        _______________________________
                                        NAME:_________________________,
                                        SPOUSE OF ROBERT T. COLLIER, JR.

                                        _______________________________
                                        NAME:_________________________,
                                        SPOUSE OF FRANK H. GORE


Schedule I - Working Capital
Schedule II - Transaction Economics
Schedule 3.04 - Capital Stock of Invatec
Schedule 3.05 - Subsidiaries of Invatec

Exhibit A - Initial Financial Statements