Exhibit 4.64

Bank of America                                        Business Loan Agreement
National Trust and Savings Association


This  Agreement  dated as of  February  15,  1996,  is  between  Bank of America
National  Trust and  Savings  Association  (the  "Bank") and Farr  Company  (the
"Borrower").

1.        FACILITY NO. 1: LINE OF CREDIT AMOUNT AND TERMS
- --        -----------------------------------------------

1.1       LINE OF CREDIT AMOUNT.

(a)       During the availability  period described below, The Bank will provide
          a line of credit ( the "Facility  No. 1") to the Borrower.  The amount
          of the line of credit (the  "Facility  No. 1  Commitment")  is Fifteen
          Million Dollars ($15,000,000).

(b)       This is a revolving  line of credit with a within  line  facility  for
          letters of credit.  During the availability  period,  the Borrower may
          repay principal amounts and reborrow them.

(c)       The Borrower agrees not to permit the outstanding principal balance of
          the line of credit  plus the  outstanding  amounts  of any  letters of
          credit,  including  amounts  drawn on  letters  of credit  and not yet
          reimbursed to exceed the Facility No. 1 Commitment.

1.2       AVAILABILITY  PERIOD.  

The line of credit is available  between the date of this  Agreement and June 1,
1998 (the "Facility No. 1 Expiration Date") unless the Borrower is in default.

1.3       INTEREST RATE.

(a)       Unless the  Borrower  elects an optional  interest  rate as  described
          below, the interest rate is the Bank's Reference Rate.

(b)       The Reference  Rate is the rate of interest  publicly  announced  from
          time  to  time  by the  Bank  in  San  Francisco,  California,  as its
          Reference  Rate The Reference Rate is set by The Bank based on various
          factors,  including  the  Bank's  costs and  desired  return,  general
          economic  conditions  and other  factors,  and is used as a  reference
          point  for  pricing  some  loans.  The  Bank  may  price  loans to its
          customers at, above,  or below the Reference  Rate.  Any change in the
          Reference Rate shall take effect at the opening of business on the day
          specified  in the  public  announcement  of a  change  in  the  Bank's
          Reference Rate.

1.4       REPAYMENT TERMS.

(a)       The Borrower  will pay interest on the Facility No. 1 on March 1,1996,
          and then monthly  thereafter  until  payment in full of any  principal
          outstanding under this line of credit.

(b)       The Borrower will repay in full all principal and any unpaid  interest
          or other charges  outstanding  under this line of credit no later than
          the Expiration Date.

(c)       Any amount bearing interest at an optional interest rate (as described
          below)  may be repaid at the end of the  applicable  interest  period,
          which shall be no later than the Expiration Date.

1.5       OPTIONAL INTEREST RATES. 

Instead of the interest rate based on the Bank's  Reference  Rate,  the Borrower
may elect to have all or portions of the line of credit (during the availability
period) bear interest at the rate(s)  described  below during an interest period
agreed to by the Bank and the  Borrower.  Each interest rate is a rate per year.
Interest  will be paid on the  last day of each  interest  period,  end,  if the
interest  period is longer  than  thirty  days (30),  then on the first day each
month during the interest period. At the end of any interest

                                       1



period,  the interest rate will revert to the rate based on the Reference  Rate,
unless the  Borrower  has  designated  another  optional  interest  rate for the
portion.

1.6       OFFSHORE RATE. 

The Borrower may elect to have all or portions of the  principal  balance of the
line of credit bear  interest at the  Offshore  Rate plus one and  seven-eighths
(1.875) percentage points.

Designation   of  an  Offshore   Rate  portion  is  subject  to  the   following
requirements:

(a)       The interest  period  during which the Offshore Rate will be in effect
          will be no shorter than 30 days and no longer than one year.  The last
          day of the interest  period will be  determined  by the Bank using the
          practices of the offshore dollar inter-bank market;

(b)       Each  Offshore  Rate  portion will be for an amount not less than Five
          Hundred Thousand Dollars ($500,OOO).

(c)       The  "Offshore  Rate"  means  the  interest  rate  determined  by  the
          following formula, rounded upward to the nearest 1/100 of one percent.
          (All amounts in the  calculation  will be determined by the Bank as of
          the first day of the interest period.)

                    Offshore Rate    =       GRAND CAYMAN RATE
                                           ------------------------
                                          (1.00- Reserve Percentage)

          Where,

          (i)       "Grand Cayman Rate" means the interest rate (rounded  upward
                    to the  nearest  1/16th of one  percent) at which the Bank's
                    Grand  Cayman  Branch,  Grand  Cayman,  British West Indies,
                    would offer U.S. dollar deposits for the applicable interest
                    period  to  other  major  banks  in  the   offshore   dollar
                    inter-bank markets.

          (ii)      "Reserve  Percentage" means the total of the maximum reserve
                    percentages for determining the reserves to be maintained by
                    member banks of the Federal Reserve System for  Eurocurrency
                    Liabilities,   as  defined  in  the  Federal  Reserve  Board
                    Regulation  D,  rounded  upward to the nearest  1/100 of one
                    percent.  The percentage will be expressed as a decimal, and
                    will include,  but not be limited to,  marginal,  emergency,
                    supplemental, special, and other reserve percentages.

(d)       The  Borrower  may not  elect an  Offshore  Rate with  respect  to any
          portion  of the  principal  balance  of the  line of  credit  which is
          scheduled to be repaid before the last day of the applicable  interest
          period.

(e)       Any  portion of the  principal  balance of the line of credit  already
          bearing  interest  at the  Offshore  Rate will not be  converted  to a
          different rate during its interest period.

(f)       Each  prepayment of an Offshore Rate portion,  whether  voluntary,  by
          reason of acceleration or otherwise, will be accompanied by the amount
          of accrued interest on the amount prepaid,  and a prepayment fee equal
          to the amount (if any) by which

          (i)       the additional interest which would have been payable on the
                    amount  prepaid  had it not been paid  until the last day of
                    the interest period, exceeds

          (ii)      the interest  which would have been  recoverable by the Bank
                    by  placing  the amount  prepaid on deposit in the  offshore
                    dollar market for a period  starting on the date on which it
                    was  prepaid  and  ending  on the last  day or the  interest
                    period of such portion.

(g)       The Bank will have no obligation to accept an election for an Offshore
          Rate portion if any of the following described events has occurred and
          is continuing:

          (i)       Dollar  deposits in the  principal  amount,  and for periods
                    equal to the interest  period,  of an Offshore  Rate portion
                    are not available in the offshore dollar inter-bank markets;
                    or

          (ii)      the Offshore Rate does not accurately reflect the cost of an
                    Offshore Rate portion.

                                        2




1.7       LETTERS OF CREDIT. 

This line of credit may be used for financing:

          (i)       standby  letters of credit  with a maximum  maturity  not to
                    extend beyond the Expiration Date.

          (ii)      The amount of the letters of credit  outstanding  at any one
                    time,  (including amounts drawn on letters of credit and not
                    yet  reimbursed),  and  standby  letters  of credit  may not
                    exceed One Million Dollars ($1,000,000).

The Borrower agrees:

(a)       any sum drawn under a letter of credit may, at the option of the Bank,
          be added to the principal amount outstanding under this Agreement. The
          amount will bear  interest and be due as  described  elsewhere in this
          Agreement,

(b)       if there is a default under this Agreement,  to immediately prepay and
          make the Bank whole for any outstanding letters of credit.

(c)       the issuance of any letter of credit and any  amendment to a letter of
          credit is subject to the Bank's  written  approval and must be in form
          and  content  satisfactory  to the Bank and in favor of a  beneficiary
          acceptable to the Bank.  Without limiting the foregoing,  no letter of
          credit may be issued to support  any  obligation  of the  Borrower  in
          connection  with  worker's   compensation  laws  or  that  contains  a
          provision  providing  that the  maturity  date  will be  automatically
          extended  each  year for an  additional  year  unless  the Bank  gives
          written notice to the contrary.

(d)       to sign the Bank's form  Application  and Agreement for Standby Letter
          of Credit.

(e)       to pay any  issuance  and/or  other  fees that the Bank  notifies  the
          Borrower will be charged for issuing and processing  letters of credit
          for the Borrower.

(f)       to allow the Bank to  automatically  charge its  checking  account for
          applicable fees, discounts, and other charges.

2.        FACILITY NO. 2: TERM LOAN AMOUNT AND TERMS
- --        ------------------------------------------

2.1       LOAN AMOUNT. 

The Bank agrees to provide a term loan to the Borrower (the "Facility No. 2") in
an amount of up to Two Million Three Hundred Thousand Dollars  ($2,300,000) (the
"Facility No. 2 Commitment").

2.2       AVAILABILITY PERIOD. 

The loan is available in one disbursement from the Bank between the date of this
Agreement and September 1, 1996, unless the Borrower is in default.

2.3       INTEREST RATE.

(a)       Unless the  Borrower  elects an optional  interest  rate as  described
          below,  the Facility No. 2 interest rate is the Bank's  Reference Rate
          plus one quarter (.25%) of a percentage point.

2.4       REPAYMENT TERMS.

(a)       The Borrower  will pay all accrued but unpaid  interest on the earlier
          of (i) the first day of the  first  month  following  the  advance  of
          proceeds  under  Facility  No.  2, or (ii)  October  1,1996,  and then
          monthly  thereafter  and upon payment in full of the  principal of the
          loan.

(b)       The Borrower will repay  principal of the term loan in fifty-nine (59)
          successive monthly installments, each equal to 1/120th of the original
          amount of the term loan,  starting  October 1, 1996.  On  September 1,
          2001, the Borrower will repay the remaining principal balance plus any
          interest then due.

(c)       Any amount bearing interest at an optional interest rate (as described
          below)  may be repaid at the end of the  applicable  interest  period,
          which shall be no later than the Expiration Date. 

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(d)       The Borrower  may prepay the loan in full or in part at any time.  The
          prepayment will be applied to the most remote installment of principal
          due under this Agreement.

2.5       OPTIONAL INTEREST RATES. 

Instead of the interest rate based on the Bank's  Reference  Rate,  the Borrower
may elect to have all or  portions  of the loan  bear  interest  at the  rate(s)
described  below  during  an  interest  period  agreed  to by the  Bank  and the
Borrower.  Each interest  rate is a rate per year.  Interest will be paid on the
last day of each interest period,  and, if the interest period is longer than 30
days then on the last day each month during the interest  period.  At the end of
any  interest  period,  the  interest  rate will revert to the rate based on the
Reference Rate,  unless the Borrower has designated  another  optional  interest
rate for the portion.

2.6       OFFSHORE RATE.  

The Borrower may elect to have all or portions of the  principal  balance of the
loan  bear  interest  at the  Offshore  Rate  plus two and  one-quarter  (2.25%)
percentage points.

Designation   of  an  Offshore   Rate  portion  is  subject  to  the   following
requirements:

(a)       The interest  period  during which the Offshore Rate will be in effect
          will be no shorter than 90 days end no longer than one year.  The last
          day of the interest  period will be  determined  by the Bank using the
          practices of the offshore dollar inter-bank market.

(b)       Each  Offshore  Rate  portion will be for an amount not less than Five
          Hundred Thousand Dollars ($500,000).

(c)       The  "Offshore  Rate"  means  the  interest  rate  determined  by  the
          following formula, rounded upward to the nearest 1/100 of one percent.
          (All amounts in the  calculation  will be determined by the Bank as of
          the first day of the interest period.)

                  Offshore Rate        =        GRAND CAYMAN RATE
                                            -------------------------
                                           (1.00 - Reserve Percentage)

          Where,

          (i)       "Grand Cayman Rate" means the interest rate (rounded  upward
                    to the  nearest  1/16th of one  percent) at which the Bank's
                    Grand  Cayman  Branch,  Grand  Cayman,  British West Indies,
                    would offer U.S. dollar deposits for the applicable interest
                    period  to  other  major  banks  in  the   offshore   dollar
                    inter-bank market.

          (ii)      "Reserve  Percentage" means the total of the maximum reserve
                    percentages for determining the reserves to be maintained by
                    member banks of the Federal Reserve System for  Eurocurrency
                    Liabilities,   as  defined  in  the  Federal  Reserve  Board
                    Regulation  D,  rounded  upward to the nearest  1/100 of one
                    percent.  The percentage will be expressed as a decimal, and
                    will include,  but not be limited to,  marginal,  emergency,
                    supplemental, special, and other reserve percentages.

(d)       The  Borrower  may not  elect an  Offshore  Rate with  respect  to any
          portion of the principal  balance of the loan which is scheduled to be
          repaid before the last day of the applicable interest period.

(e)       Any  portion  of the  principal  balance of the loan  already  bearing
          interest at the  Offshore  Rate will not be  converted  to a different
          rate during its interest period.

(f)       Each  prepayment of an Offshore Rate portion,  whether  voluntary,  by
          reason of acceleration or otherwise, will be accompanied by the amount
          of accrued interest on the amount prepaid;  and a prepayment fee equal
          to the amount (if any) by which

          (i)       the additional interest which would have been payable on the
                    amount  prepaid  had ft not been paid  until the last day of
                    the interest period, exceeds

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          (ii)      the interest  which would have been  recoverable by the Bank
                    by  placing  the amount  prepaid on deposit in the  offshore
                    dollar market for a period  starting on the date on which it
                    was  prepaid  and  ending  on the last  day of the  interest
                    period for such portion.

(g)       The Bank will have no obligation to accept an election for an Offshore
          Rate portion if any of the following described events has occurred and
          is continuing:

          (i)       Dollar  deposits in the  principal  amount,  and for periods
                    equal to the interest  period,  or an Offshore  Rate portion
                    are not available in the offshore dollar inter-bank markets;
                    or

          (ii)      the Offshore Rate does not accurately reflect the cost of an
                    Offshore Rate portion.

3.        EXPENSES
- --        --------

3.1       EXPENSES.

(a)       The Borrower  agrees to reimburse  the Bank for any expenses it incurs
          in the  preparation  of this Agreement and any agreement or instrument
          required by this Agreement.  Expenses include, but are not limited to,
          reasonable  attorneys'  fees,  including  any  allocated  costs of the
          Bank's in-house counsel.

(b)       The  Borrower  agrees to  reimburse  the Bank for the cost of periodic
          audits and  appraisals of the personal  property  collateral  securing
          this Agreement,  at such intervals as the Bank may reasonably require.
          The audits and  appraisals  may be per formed by employees of the Bank
          or by independent appraisers.

4.        COLLATERAL
- --        ----------

4.1       PERSONAL PROPERTY.  

The  Borrower's  obligations to the Bank under this Agreement will be scoured by
personal  property  the  Borrower  now owns or will own in the  future as listed
below.  The collateral is further defined in security  agreement(s)  executed by
the  Borrower.  In addition,  all personal  property  collateral  securing  this
Agreement  shall also  secure all other  present and future  obligations  of The
Borrower to the Bank (excluding any consumer credit covered by the Federal Truth
in Lending  law,  unless the  Borrower has  otherwise  agreed in  writing).  All
personal property collateral securing any other present or future obligations of
the Borrower to The Bank shall also secure this Agreement.

(a)       Inventory.

(b)       Receivables.

5.        DISBURSEMENTS, PAYMENTS AND COSTS
- --        ---------------------------------

5.1       REQUESTS FOR CREDIT. 

Each  request  for an  extension  of credit  will be made in writing in a manner
acceptable to the Bank, or by another means acceptable to the Bank.

5.2       DISBURSEMENTS AND PAYMENTS. 

Each disbursement by the Bank and each payment by the Borrower will be:

(a)       made at the Bank's  branch (or other  location)  selected  by the Bank
          from time to time;

(b)       made for the  account of the Bank's  branch  selected by the Bank from
          time to time;

(c)       made in  immediately  available  funds,  or such  other  type of funds
          selected by the Bank;

(d)       evidenced by records kept by the Bank.  In addition,  the Bank may, at
          its  discretion,  require the Borrower to sign one or more  promissory
          notes.

                                        5




5.3       TELEPHONE AUTHORIZATION.

(a)       The Bank may honor telephone  instructions  for advances or repayments
          or for the designation of optional  interest rates given by any one of
          the  individuals  authorized to sign loan  agreements on behalf of the
          Borrower,  or any  other  individual  designated  by any  one of  such
          authorized signers.

(b)       Advances will be deposited in and  repayments  will be withdrawn  from
          the  Borrower's  account  number  14576-50027,  or such  other  of the
          Borrower's  accounts  with the Bank as  designated  in  writing by the
          Borrower.

(c)       The Borrower indemnifies and excuses the Bank (including its officers,
          employees,  and  agents)  from  all  liability,  loss,  and  costs  in
          connection  with any act  resulting  from  telephone  instructions  it
          reasonably  believes  are  made by any  individual  authorized  by the
          Borrower to give such  instructions.  This  indemnity  and excuse will
          survive this Agreement.

5.4       DIRECT DEBIT.

(a)       The Borrower agrees that interest and principal  payments and any fees
          will be deducted  automatically  on the due date from checking account
          number 14576-50027.

(b)       The Bank will debit the account on the dates the payments  become due.
          If a due date does not fall on a banking  day, the Bank will debit the
          account on the first banking day following the due date.

(c)       The  Borrower  will  maintain  sufficient  funds in the account on the
          dates the Bank enters debits  authorized by this  Agreement.  If there
          are insufficient  funds in the account on the date the Bank enters any
          debit authorized by this Agreement, the debt will be reversed.

5.5       BANKING DAYS.  

Unless otherwise provided in this Agreement, a banking day is a day other than a
Saturday or a Sunday on which the Bank is open for business in  California.  For
amounts  bearing  interest at an offshore  rate (if any), a banking day is a day
other  than a  Saturday  or a Sunday on which the Bank is open for  business  in
California and dealing in offshore dollars. All payments and disbursements which
would be due on a day which is not a banking day will be due on the next banking
day. All  payments  received on a day which is not a banking day will be applied
to the credit on the next banking day.

5.6       TAXES.  

The  Borrower  will not deduct any taxes from any payments it makes to the Bank.
If any  government  authority  imposes  any  taxes on any  payments  made by the
Borrower,  the Borrower will pay the taxes and will also pay to the Bank, at the
time  interest  is paid,  any  additional  amount  which the Bank  specifies  as
necessary to preserve the  after-tax  yield the Bank would have received if such
taxes had not bean imposed.  Upon request by the Bank, the Borrower will confirm
that it has paid  the  taxes  by  giving  the Bank  official  tax  receipts  (or
notarized copies) within 30 days after the due date. However,  the Borrower will
not pay the Bank's net income taxes.

5.7       INTEREST CALCULATION.  

Except as otherwise  stated in this  Agreement,  all interest and fees,  if any,
will be  computed on the basis of a 360-day  year and the actual  number of days
elapsed. This results in more interest or a higher fee than if a 365-day year is
used.

5.8       INTEREST ON LATE PAYMENTS. 

At the Bank's sole option in each  instance,  any amount not paid when due under
this Agreement (including interest) shall bear interest from the due date at the
Bank's  Reference  Rate plus one  (1.0%)  percentage  point.  This may result in
compounding of interest.

5.9       DEFAULT RATE.  

Upon the  occurrence  and  during the  continuation  of any  default  under this
Agreement,  advances  under this  Agreement  will at the option of the Bank bear
interest at a rate per annum which is two (2.0%)  percentage  points higher than
the rate of interest  otherwise  provided  under this  Agreement.  This will not
constitute a waiver of any default.

6.       CONDITIONS
- --       ----------
                                        6


The Bank must receive the following items, in form and content acceptable to the
Bank,  before it is  required  to extend any credit to the  Borrower  under this
Agreement:

6.1       AUTHORIZATIONS.  

Evidence that the execution,  delivery and  performance by the Borrower (and any
guarantor) of this Agreement and any instrument or agreement required under this
Agreement have been duly authorized.

6.2       SECURITY AGREEMENTS. 

Signed  original  security  agreements,  assignments,  financing  statements and
fixture  filings,  together  with  collateral  in  which  the  Bank  requires  a
possessory security interest which the Bank requires.

6.3       EVIDENCE OF PRIORITY.  

Evidence  that  security  interests  and  liens in favor of the Bank are  valid,
enforceable,  and prior to all others'  rights and  interests,  except those the
Bank consents to in writing.

6.4       INSURANCE.  

Evidence of insurance  coverage,  as required in the "Covenants" section of this
Agreement.

6.5       ABL AUDIT.  

Satisfactory report on the results of an audit or review scheduled and performed
by the Bank's Asset Based Lending Department.

6.6       OTHER ITEMS.  

Any other items that the Bank reasonably requires.

7.        REPRESENTATIONS AND WARRANTIES
- --        ------------------------------

When the Borrower  signs this  Agreement,  and until the Bank is repaid in full,
the Borrower makes the following9  representations and warranties,  Each request
for an extension of credit constitutes a renewed representation,

7.1       ORGANIZATION OF BORROWER.  

The Borrower is a  corporation  duly formed and  existing  under the laws of the
state where organized.

7.2       AUTHORIZATION.  

This Agreement,  and any instrument or agreement required hereunder,  are within
the Borrower's powers,  have been duly authorized,  and do not conflict with any
of its organizational papers.

7.3       ENFORCEABLE AGREEMENT.  

This  Agreement  is a  legal,  valid  and  binding  agreement  of the  Borrower,
enforceable  against  the  Borrower  in  accordance  with  its  terms,  and  any
instrument or agreement required hereunder, when executed and delivered, will be
similarly legal, valid, binding and enforceable.

7.4       GOOD STANDING.  

In each state in which the Borrower does business,  it is properly licensed,  in
good standing, and, where required, in compliance with fictitious name statutes.

7.5       NO CONFLICTS.  

This Agreement does not conflict with any law, agreement, or obligation by which
the Borrower is bound.

7.6       FINANCIAL INFORMATION.  

All  financial  and other  information  that has been or will be supplied to the
Bank,  including the  Borrower's  financial  statement  dated as of November 30,
1995, is:

          (a)       sufficiently complete to give the Bank accurate knowledge of
                    the Borrower's (and any guarantor's) financial condition.

          (b)       in form and content required by the Bank,

          (a)       in compliance with all government regulations that apply.

7.7       LAWSUITS. 

There is no lawsuit,  tax claim or other dispute  pending or threatened  against
the Borrower, which, if lost, would impair the Borrower's financial condition or
ability to repay the loan, except as have been disclosed in writing to the Bank.

                                       7


7.8       COLLATERAL. 

All  collateral  required  in this  Agreement  is  owned by the  grantor  of the
security interest free of any title defects or any liens or interests of others.

7.9       PERMITS, FRANCHISES. 

The Borrower  possesses  all permits,  memberships,  franchises,  contracts  and
licenses required and all trademark rights, trade name rights, patent rights and
fictitious  name rights  necessary to enable it to conduct the business in which
it is now engaged.

7.10      OTHER OBLIGATIONS.  

The  Borrower  is not in default  on any  obligation  for  borrowed  money,  any
purchase money  obligation or any other material  lease,  commitment,  contract,
instrument or obligation.

7.11      INCOME TAX RETURNS.  

The Borrower has no knowledge of any pending  assessments  or adjustments of its
income tax for any year.

7.12      NO EVENT OF DEFAULT.  

There is no event  which is, or with notice or lapse of time or both would be, a
default under this Agreement.

7.13      ERAS Plans.

(a)       The Borrower has fulfilled its obligations,  if any, under the minimum
          funding  standards of ERISA and the Code with respect to each Plan and
          is  in  compliance  in  all  material   respects  with  the  presently
          applicable  provisions of ERISA and the Code, and has not incurred any
          liability with respect to any Plan under Title IV of ERISA.

(b)       No reportable  event has occurred  under Section  4043(b) of ERISA for
          which the PBGC requires 30 day notice.

(c)       No action by the Borrower to  terminate or withdraw  from any Plan has
          been taken and no notice of intent to  terminate a Plan has been filed
          under Section 4041 of ERISA.

(d)       No proceeding  has been commenced with respect to a Plan under Section
          4042 of ERISA,  and no event has  occurred or  condition  exists which
          might constitute grounds for the commencement of such a proceeding.

(e)       The following  terms have the meanings  indicated for purposes of this
          Agreement:

          (i)       "Code" means the Internal  Revenue Code of 1986,  as amended
                    from time to time.

          (ii)      "ERISA" means the Employee Retirement Income Act of 1974, as
                    amended from time to time.

          (iii)     "PBGC"  means  the  Pension  Benefit  Guaranty   Corporation
                    established pursuant to Subtitle A of Title IV of ERISA.

          (iv)      "Plan" means any employee pension benefit plan maintained or
                    contributed  to by the  Borrower  and insured by the Pension
                    Benefit Guaranty Corporation under Title IV of ERISA.

7.14      LOCATION OF BORROWER. 

The Borrower's place of business (or, if the Borrower has more than one place of
business, its chief executive office) is located at the address listed under the
Borrower's signature on this Agreement.

8.        COVENANTS
- --        ---------

The Borrower  agrees,  so long as credit is available  under this  Agreement and
until the Bank is repaid in full:

8.1       USE OF PROCEEDS.  

To use the proceeds of the Facility No. 1 for working capital purposes including
the issuance of stand-by  letters of credit;  and the proceeds of Facility No. 2
for the refinancing of industrial revenue bonds in Holly Springs, Mississippi.

                                        8


8.2       FINANCIAL INFORMATION.  

To  provide  the  following  financial   information  and  statements  and  such
additional information as requested by the Bank from time to time:

(a)       Within 120 days of the  Borrower's  fiscal  year end,  the  Borrower's
          annual  financial  statements.  These  financial  statements  must  be
          audited (with an unqualified opinion) by a Certified Public Accountant
          ("CPA")  acceptable to the Bank. The statements shall be prepared on a
          consolidated and consolidating basis.

(b)       Within 30 days of the period's end, the borrowers  quarterly financial
          statements.  Those financial statements may be Borrower prepared.  The
          statements  shall be  prepared  on a  consolidated  and  consolidating
          basis.

(c)       Copies of the Borrower's Form 10-K Annual Report,  Form 10-Q Quarterly
          Report and Form 8-K  Current  Report  within 15 days after the date of
          filing with the Securities and Exchange Commission.

(d)       Within 120 days of the  Borrower's  fiscal  year end,  the  Borrower's
          annual revised three year strategic plan.

8.3       QUICK RATIO.  

To  maintain  on a  consolidated  basis a  ratio  of  quick  assets  to  current
liabilities of at least .70:1.0, to be measured quarterly.

"Quick assets" means cash,  short-term cash investments,  net trade receivables,
marketable securities not classified as long-term investments.

8.4       TOTAL LIABILITIES TO TANGIBLE NET WORTH RATIO. 

To maintain on a consolidated basis a ratio of total liabilities to tangible net
worth not exceeding the amounts indicated for each period specified below, to be
measured quarterly:

                Period                                           RATIO
                ---------------                                  --------
                From the date hereof through
                December 30, 1996                                1.50:1.0
                From December 31, 1996 and thereafter            1,25:1.0

"Total  liabilities"  means  the  sum of  current  liabilities  plus  long  term
liabilities.

"Tangible  net  worth"  means  the gross  book  value of the  Borrower's  assets
(excluding goodwill,  patents,  trademarks,  trade names,  organization expense,
treasury stock,  unamortized  debt discount and expense,  deferred  research and
development costs, deferred marketing expenses,  and other like intangibles less
total  liabilities,  including  but not limited to accrued and  deferred  income
taxes, and any reserves against assets.

8.5       FIXED CHARGE COVERAGE RATIO.  

To maintain on a  consolidated  basis a Fixed Charge  Coverage Ratio of at least
1,35:1.0, to be measured quarterly.

"Fixed  Charge  Coverage  Ratio" means the ratio of the sum of net income before
taxes,  plus  interest  expense,  depreciation  and  amortization  to the sum of
interest  expense,  taxes paid, the current portion of long-term  debt,  capital
expenditures  and  dividends.  This ratio will be  calculated at the end of each
fiscal quarter,  using the results of that quarter and each of the 3 immediately
preceding quarters. The current portion of long term debt will be measured as of
the last day of the preceding fiscal year.

8.6       NET DOMESTIC SHAREHOLDER EQUITY.  

To maintain on a  consolidated  basis a net  domestic  shareholder  equity of at
least Ten Million Five Hundred  Thousand Dollars  ($10,500,000),  to be measured
quarterly.

"Net Domestic Shareholder Equity " means the domestic shareholder equity less
investments in subsidiaries and less accounts receivable from subsidiaries.

8.7       LIMITATION ON LOSSES.  

Not  incur  any  net  loss  before  taxes  and  extraordinary  items  in any two
consecutive fiscal quarters.

                                        9



8.8       OTHER DEBTS.  

Not to have  outstanding  or  incur  any  direct  or  contingent  debts or lease
obligations  (other than those to the Bank),  or become  liable for the debts of
others without the Bank's written consent. This does not prohibit

(a)       Acquiring goods, supplies, or merchandise on normal trade credit.

(b)       Endorsing  negotiable  instruments  received  in the  usual  course of
          business.

(c)       Obtaining surety bonds in the usual course of business.

(d)       Debts and lines of credit in existence  on the date of this  Agreement
          disclosed in writing to the Bank including.

(e)       Debts for insurance  premiums in an aggregate  principal amount at any
          one time  outstanding  not to exceed Eight  Hundred  Thousand  Dollars
          ($800,000).

(f)       Debts to acquire  fixed or  capital  assets in an amount not to exceed
          Seven Hundred Fifty Thousand  Dollars  ($750,000) in any single fiscal
          year.

(g)       Debts (other than those  permitted  under  subsections (a) through (f)
          above) in an aggregate  principal  amount at any one time  outstanding
          not to exceed One Hundred Thousand Dollars ($100,000).

8.9       OTHER LIENS.  

Not to  create,  assume,  or allow  any  security  interest  or lien  (including
judicial liens) on property the Borrower now or later owns, except:

(a)       Deeds of trust and security agreements in favor of the Bank.

(b)       Liens for taxes not yet due.

(c)       Liens  outstanding on the date of this Agreement  disclosed in writing
          to the Bank.

8.10      NEGATIVE PLEDGE OTHER REAL PROPERTY.  

Not to  create,  assume,  or allow  any  security  interest  or lien  (including
judicial  liens) on real property the Borrower now or later owns,  including but
not limited to the real properly located at the following addresses:

          REAL PROPERTY ADDRESSES

          2221 Park Place, El Segundo, California
          1815 - 1835 Glenwood. Delano, California
          500 Industrial Avenue, Corcoran, California
          805 No. West Street, Holly Springs, Mississippi
          Old Highway 70, 1-40, Conover, North Carolina
          3501 Airport Road, Jonesboro, Arkansas
          500 So. Main Street, Crystal Lake, Illinois

8.11      NOTICES TO BANK.  

To promptly notify the Bank in writing of:

(a)       any lawsuit over One Million Dollars ($1,000,000) against the Borrower
          (or any guarantor).

(b)       any  substantial  dispute  between the Borrower (or any guarantor) and
          any government authority.

(c)       any failure to comply with this Agreement.

(d)       any material  adverse change in the  Borrower's  (or any  guarantor's)
          financial condition or operations.

(e)       any change in the Borrower's name, legal structure, place of business,
          or chief  executive  office if the Borrower has more than one place of
          business. 

                                       10



8.12      BOOKS AND RECORDS.  

To maintain adequate books and records.

8.13      AUDITS. 

To allow the Bank and its  agents  to  inspect  the  Borrower's  properties  and
examine,  audit and make copies of books and records at any reasonable  time. If
any of the  Borrower's  properties,  books or records are in the possession of a
third party, the Borrower  authorizes that third party to permit the Bank or its
agents to have  access to  perform  inspections  or audits and to respond to the
Bank's requests for information concerning such properties, books and records.

8.14      COMPLIANCE WITH LAWS. 

To comply with the laws  (including any fictitious  name statute),  regulations,
and orders of any government body with authority over the Borrower's business.

8.15      PRESERVATION OF RIGHTS.  

To maintain and preserve all rights, privileges, and franchises the Borrower now
has.

8.16      MAINTENANCE OF PROPERTIES.  

To make any repairs, renewals, or replacements to keep the Borrower's properties
in good working condition.

8.17      PERFECTION OF LIENS. 

To help the Bank  perfect and  protect its  security  interests  and liens,  and
reimburse it for related  costs it incurs to protect its security  interests and
liens.

8.18      COOPERATION.  To take any action requested by the Bank to carry out 
the intent of this Agreement.

8.19      INSURANCE.

(a)       Insurance  Covering  Collateral.  To maintain all risk property damage
          insurance  policies  covering the  tangible  property  comprising  the
          collateral.  Each  insurance  policy must be for the full  replacement
          cost of the collateral and include a replacement cost endorsement. The
          insurance  must be issued by an insurance  company  acceptable  to the
          Bank end must include a lender's loss payable  endorsement in favor of
          the Bank in a form acceptable to the Bank.

(b)       General Business Insurance.  To maintain insurance satisfactory to the
          Bank  as to  amount,  nature  and  carrier  covering  property  damage
          (including  loss  of use  and  occupancy)  to  any  of the  Borrower's
          properties,   public  liability   insurance   including  coverage  for
          contractual  liability,  product liability and workers'  compensation,
          and any other insurance which is usual for the Borrower's business.

(c)       Evidence of Insurance. Upon the request of the Bank, to deliver to the
          Bank a copy of each insurance policy,  or, if permitted by the Bank, a
          certificate of insurance listing all insurance in force.

8.20      ADDITIONAL NEGATIVE COVENANTS.  

Not to, without the Bank's written consent:

(a)       engage in any business  activities  substantially  different  from the
          Borrower's present business.

(b)       liquidate or dissolve the Borrower's business.

(c)       enter into any consolidation,  merger, pool, joint venture, syndicate,
          or other combination.

(d)       lease,  or  dispose  of all or a  substantial  part of the  Borrower's
          business or the Borrower's assets.

(e)       acquire  or  purchase a  business  or its assets for a  consideration,
          including  assumption  of debt,  if the  business  or the assets to be
          acquired are for a business  which is not in the same line of business
          as the Borrower.

(f))      sell or  otherwise  dispose of any  assets  for less than fair  market
          value, or enter into any sale and leaseback  agreement covering any of
          its fixed or capital assets.

8.21      ERISA PLANS.  To give prompt written notice to the Bank of:

                                       11


(a)       The occurrence of any reportable  event under Section 4043(b) of ERISA
          for which the PBGC requires 30 day notice.

(b)       Any action by the Borrower to terminate or withdraw from a Plan or the
          filing of any  notice of intent to  terminate  under  Section  4041 of
          ERISA.

(c)       Any notice of noncompliance  made with respect to a Plan under Section
          4041(b) of ERISA.

(d)       The  commencement  of any  proceeding  with  respect  to a Plan  under
          Section 4042 of ERISA.

9.        HAZARDOUS WASTE INDEMNIFICATION
- --        -------------------------------

The  Borrower  will  indemnify  and  hold  harmless  the  Bank  from any loss or
liability   directly  or  indirectly   arising  out  of  the  use,   generation,
manufacture,   production,  storage,  release,  threatened  release,  discharge,
disposal or presence of a hazardous substance. This indemnity will apply whether
the  hazardous  substance  is on,  under or about  the  Borrower's  property  or
operations or property leased to the Borrower. The indemnity includes but is not
limited to attorneys' fees  (including the reasonable  estimate of the allocated
coat of in-house  counsel and staff).  The  indemnity  extends to the Bank,  its
parent, subsidiaries and all of their directors,  officers,  employees,  agents,
successors,  attorneys  and assigns.  For these  purposes,  the term  "hazardous
substances" means any substance which is or becomes designated as "hazardous" or
'toxic"  under any  federal,  state or local law,  This  indemnity  will survive
repayment of the Borrower's obligations to the Bank.

10.       DEFAULT
- ---       -------

If any of the  following  events  occur,  the  Bank  may do one or  more  of the
following:  declare the Borrower in default,  stop making any additional  credit
available  to the  Borrower,  and require the  Borrower to repay its entire debt
immediately  and without prior notice.  If an event of default  occurs under the
paragraph entitled  "Bankruptcy," below, with respect to the Borrower,  then the
entire  debt  outstanding  under  this  Agreement  will   automatically  be  due
immediately.

10.1      FAILURE TO PAY.  

The Borrower fails to make a payment under this Agreement when due.

10.2      LIEN PRIORITY. 

The Bank fails to have an enforceable  first lien (except for any prior liens to
which the Bank has consented in writing) on or security interest in any property
given as security for this loan.

10.3      FALSE INFORMATION.  

The  Borrower   has  given  the  Bank  false  or   misleading   information   or
representations.

10.4      BANKRUPTCY. 

The  Borrower  (or any  guarantor)  files a  bankruptcy  petition,  a bankruptcy
petition is filed against the Borrower (or any  guarantor),  or the Borrower (or
any guarantor) makes a general assignment for the benefit of creditors.

10.5      RECEIVERS.  

A  receiver  or  similar  official  is  appointed  for  the  Borrower's  (or any
guarantor's) business, or the business is terminated.

10.6      GOVERNMENT ACTION.  

Any  government  authority  takes  action  that  the  Bank  believes  materially
adversely  affects the Borrower's (or any  guarantor's)  financial  condition or
ability to repay.

10.7      MATERIAL ADVERSE CHANGE. 

A  material  adverse  change  occurs  in the  Borrower's  (or  any  guarantor's)
financial condition, properties or prospects, or ability to repay the loan.

10.8      CROSS-DEFAULT. 

Any  default  occurs  under any  agreement  in  connection  with any  credit the
Borrower (or any  guarantor) has obtained from anyone else or which the Borrower
(or any guarantor) has guaranteed.

10.9      DEFAULT UNDER RELATED DOCUMENTS.  

Any guaranty,  subordination  agreement,  security agreement,  or other document
required by this Agreement is violated of no longer in effect.

                                       12

10.10     OTHER BANK AGREEMENTS. 

The Borrower (or any  guarantor)  fails to meet the  conditions  of, or fails to
perform any obligation under any other agreement the Borrower (or any guarantor)
has with the Bank or any affiliate of the Bank.

10.11     ERISA PLANS.  

To give prompt written notice to the Bank of:

(a)       The occurrence of any reportable  event under Section 4043(b) of ERISA
          for which the PBGC requires 30 day notice.

(h)       Any action by the Borrower to terminate or withdraw from a Plan or the
          filing of any  notice of intent to  terminate  under  Section  4041 of
          ERISA.

(c)       Any notice of noncompliance  made with respect to a Plan under Section
          4041(b) of ERISA.

(d)       The  commencement  of any  proceeding  with  respect  to a Plan  under
          Section 4042 of ERISA.

10.12     OTHER BREACH UNDER AGREEMENT.  

The Borrower fails to meet the conditions of, or fails to perform any obligation
under, any term of this Agreement not specifically referred to in this Article.

11.       ENFORCING THIS AGREEMENT; MISCELLANEOUS
- ---       ---------------------------------------

11.1      GAAP.  

Except as otherwise stated in this Agreement, all financial information provided
to the Bank and all financial  covenants will be made under  generally  accepted
accounting principles, consistently applied.

11.2      CALIFORNIA LAW.  

This Agreement is governed by California law.

11.3      SUCCESSORS AND ASSIGNS. 

This  Agreement  is binding on the  Borrower's  and the  Bank's  successors  and
assignees. The Borrower agrees that it may not assign this Agreement without the
Bank's prior consent.  The Bank may sell  participations in or assign this loan,
and may  exchange  financial  information  about  the  Borrower  with  actual or
potential  participants  or  assignees;  provided  that such actual or potential
participants  or  assignees  shall  agree to  treat  all  financial  information
exchanged as  confidential.  If a participation is sold or the loan is assigned,
the purchaser will have the right of set-off against tire Borrower.

11.4      ARBITRATION.

(a)       This paragraph  concerns the resolution of any controversies or claims
          between the Borrower and the Bank,  including but not limited to those
          that arise from:

          (i)       This  Agreement   (including  any  renewals   extensions  or
                    modifications of this Agreement);

          (ii)      Any document, agreement or procedure related to or delivered
                    in connection with this Agreement;

          (iii)     Any violation of this Agreement; or

          (iv)      Any claims for damages resulting from any business conducted
                    between  the  Borrower  and the Bank,  including  claims for
                    injury to parsons, property or business interests (torts).

(b)       At the request of the Borrower or the Bank, any such  controversies or
          claims will be settled by  arbitration  in accordance  with the United
          States  Arbitration Act. The United States  Arbitration Act will apply
          even though this Agreement  provides that it is governed by California
          law.

(c)       Arbitration   proceedings   will  be   administered  by  the  American
          Arbitration Association and will be subject to its commercial rules of
          arbitration.

(d)       For purposes of the  application  of the statute of  limitations,  the
          filing of an arbitration  pursuant to this paragraph is the equivalent
          of the filing of a lawsuit,  and any claim or controversy which may be
          arbitrated  under this paragraph is subject to any applicable  statute
          of limitations. The arbitrators will

                                       13

          have the authority to decide  whether any such claim or controversy is
          barred by the  statute  of  limitations  and,  if so, to  dismiss  the
          arbitration on that basis.

(e)       If there is a  dispute  as to  whether  an  issue is  arbitrable,  the
          arbitrators will have the authority to resolve any such dispute.

(f)       The  decision  that  results  from an  arbitration  proceeding  may be
          submitted to any authorized court of law to be confirmed and enforced.

(g)       The procedure  described  above will not apply if the  controversy  or
          claim, at the time of the proposed  submission to arbitration,  arises
          from or relates to an  obligation to the Bank secured by real property
          located in  California.  In this case,  both the Borrower and the Bank
          must consent to submission of the claim or controversy to arbitration.
          If both  parties do not consent to  arbitration,  the  controversy  or
          claim will be settled as follows:

          (i)       The  Borrower  and the Bank will  designate  a referee (or a
                    panel  of  referees)  selected  under  the  auspices  of the
                    American  Arbitration  Association  in the  same  manner  as
                    arbitrators    are    selected   in    Association-sponsored
                    proceedings;

          (ii)      The  designated  referee (or the panel of referees)  will be
                    appointed by a court as provided in California Code of Civil
                    Procedure Section 638 and the following related sections;

          (iii)     The referee (or the presiding  referee of the panel) will be
                    an active attorney or a retired judge; and

          (iv)      The award that  results from the decision of the referee (or
                    the panel)  will be entered as a judgment  in the court that
                    appointed the referee,  in accordance with the provisions of
                    California Code of Civil Procedure Sections 644 and 645.

(h)       This  provision  does not limit the right of the  Borrower or the Bank
          to:

          (i)       exercise self-help remedies such as setoff;

          (ii)      foreclose  against  or sell  any real or  personal  property
                    collateral; or

          (iii)     act  in  a  court  of  law,  before,  during  or  after  the
                    arbitration  proceeding  to obtain:  (A) an interim  remedy;
                    and/or (B) additional or supplementary remedies.

(i)       The  pursuit of or a  successful  action for  interim,  additional  or
          supplementary  remedies,  or the  filing of a court  action,  does not
          constitute  a  waiver  of the  right  of  the  Borrower  or the  Bank,
          including  the suing  party,  to submit  the  controversy  or claim to
          arbitration if the other party contests the lawsuit.  However,  if the
          controversy  or claim arises from or relates to an  obligation  to the
          Bank which is secured by real  property  located in  California at the
          time of the proposed submission to arbitration,  this right is limited
          according to the  provision  above  requiring  the consent of both the
          Borrower and the Bank to seek resolution through arbitration.

(j)       If the  Bank  forecloses  against  any  real  property  securing  this
          Agreement, the Bank has the option to exercise the power of sale under
          the deed of trust or mortgage, or to proceed by judicial foreclosure.

11.5      SEVERABILITY; WAIVERS.  

If any part of this Agreement is not enforceable,  the rest of the Agreement may
be enforced. The Bank retains all rights, even if it makes a loan after default.
If the Bank  waives a default,  it may enforce a later  default.  Any consent or
waiver under this Agreement must be in writing.

11.6      ADMINISTRATION COSTS.  

The Borrower shall pay the Bank for all reasonable costs incurred by the Bank in
connection with administering this Agreement.

                                       14




11.7      ATTORNEYS' FEES. 

The Borrower shall  reimburse the Bank for any  reasonable  costs and attorneys'
fees incurred by the Bank in connection  with the enforcement or preservation of
any rights or remedies under this Agreement and any other documents  executed in
connection with this Agreement,  and including any amendment,  waiver, "workout"
or restructuring under this Agreement.  In the event of a lawsuit or arbitration
proceeding,  the  prevailing  party is entitled to recover costs and  reasonable
attorneys'   fees  incurred  in  connection  with  the  lawsuit  or  arbitration
proceeding, as determined by the court or arbitrator. As used in this paragraph,
attorneys' fees" includes the allocated costs of in-house counsel.

11.8      ONE AGREEMENT. 

This  Agreement and any related  security or other  agreements  required by this
Agreement, collectively:

(a)       represent the sum of the  understandings  and  agreements  between the
          Bank and the Borrower concerning this credit; and

(b)       replace any prior oral or written  agreements between the Bank and the
          Borrower concerning this credit; and

(c)       are intended by the Bank and the  Borrower as the final,  complete and
          exclusive statement of the terms agreed to by them.

In the event of any conflict  between this  Agreement  and any other  agreements
required by this Agreement, this Agreement will prevail.

11.9      NOTICES. 

All notices required under this Agreement shall be personally  delivered or sent
by first class mail, postage prepaid,  to the addresses on the signature page of
this  Agreement,  or to such other  addresses  as the Bank and the  Borrower may
specify from time to time in writing.

11.10     HEADINGS. 

Article and paragraph  headings are for reference  only and shall not effect the
interpretation or meaning of any provisions of this Agreement.

11.11     COUNTERPARTS. 

This  Agreement  may  be  executed  in as  many  counterparts  as  necessary  or
convenient, and by the different parties on separate counterparts each of which,
when so executed,  shall be deemed an original but all such  counterparts  shall
constitute but one and the same agreement.





                                       15




Bank Of America
National Trust and Savings Association           Farr Company


/s/ William R. Cave                              /s/ Kenneth W. Gerstner
- -------------------                              -----------------------

BY:  WILLIAM R. CAVE                             BY:  KENNETH W. GERSTNER
TITLE:  VICE PRESIDENT                           TITLE:  SENIOR VICE PRESIDENT
                                                 and CHIEF FINANCIAL OFFICER




ADDRESS WHERE NOTICES TO THE BANK               ADDRESS  WHERE  NOTICES TO THE
ARE TO BE SENT:                                 BORROWER ARE TO BE SENT:

LONG BEACH REGIONAL COMMERCIAL                  2221 PARK PLACE
       BANKING OFFICE #1457                     EL SEGUNDO CA 90245
150 LONG BEACH BLVD. 3RD FLOOR                  
LONG BEACH CA 90802










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