EXHIBIT  4.1







                                  [LETTERHEAD]



July 24, 1997

(415) 765-2614

Ms. Delight Saxton
Chief Financial Officer and
Vice President of Administration
McGrath RentCorp
2500 Grant Avenue
San Lorenzo, CA 94580

Re:  $3,000,000.00 Committed Credit Facility

Dear Ms. Saxton:

Union Bank of California, N.A. ("Bank") is pleased to offer McGrath RentCorp, 
a California corporation ("Borrower") a committed credit facility 
("Facility") under which the Bank will make advances to the Borrower from 
time to time up to and including June 30, 1998, not to exceed at any time the 
maximum principal amount of Three Million Dollars ($3,000,000), to be 
governed by the terms of the enclosed Credit Line Note ("Credit Line Note") 
in favor of Bank, and subject to the conditions and agreements set forth 
below.

1.  This Facility is made available only in connection with Borrower's use of 
the Bank's sweep service for management of its checking account balances 
("Sweep Service"). Therefore, this Facility shall commence on the date 
("Effective Date") Borrower becomes a Sweep Service customer and this 
Facility shall terminate, if not earlier terminated, on the date Borrower 
ceases to continue as a Sweep Service customer. Upon such termination Bank 
shall have no further obligation to fund advances under this Facility, and 
all amounts owing under the Credit Line Note shall become immediately due and 
payable.

2.  As provided in the Credit Line Note, the occurrence of an Event of 
Default under the Multibank Agreement shall be a default under this Facility. 
The term "Multibank Agreement" as used herein means that certain Credit 
Agreement dated as of July 10, 1997, by and among Borrower, Bank, Fleet Bank, 
N.A. and Bank of America, National Trust & Savings Association, and shall 
include any amendments thereto as are consented to by Bank as set forth 
herein. Each capitalized term not otherwise defined herein shall have the 
meaning set forth in the Multibank Agreement.

3.  Borrower shall comply with, and repeats as if fully set forth herein as 
of the date hereof, all of the representations, covenants and obligations of 
Borrower set forth under Articles 6, 7, 8, and 11 (and including any 
definitions and related provisions) of the Multibank Agreement. In the event 
the Multibank Agreement terminates or expires prior to the termination or 
expiration of this Facility the foregoing representations, covenants and 
obligations of Borrower shall nevertheless survive as between Borrower and 
Bank with respect to this Facility and shall continue in effect until this 
Facility terminates or expires. No amendment or waiver of any provision of 
the Multibank Agreement after the date hereof shall be effective with respect 
to this Facility unless the Bank consents thereto in writing.

4.  Borrower acknowledges that any amount outstanding under the Credit Line 
Note is included within the definition of "Debt" and "Outside Debt" under 
the Agreement.

5.  Borrower shall pay to Bank a non-refundable commitment fee for this 
Facility for the period of time during which this Facility is available. Such 
fee shall be payable in arrears in quarterly installments on the last day of 
each March, June, September, and December, and on the last day this Facility 
is



Ms. Delight Saxton
July 24, 1997
Page 2

available, to be computed at the rate per annum equal to 0.125% on the 
average unused amount of the Facility during such period.

6.  This Facility letter will be governed by the laws of the State of 
California.

Enclosed is the original Credit Line Note and a copy of the this Facility 
letter together with an Authorization to Pay Proceeds of Note and Loan 
Disbursement Instructions, and any other contract, instrument or document Bank 
requires to be executed and delivered in connection with this Facility (each 
a "Loan Document"). The Borrower's executing the Loan Documents and returning 
them to Bank together with an appropriate corporate resolution and incumbency 
certificate acceptable to Bank constitutes its agreement to the terms and 
conditions of this Facility.

BORROWER AND BANK HEREBY WAIVE ANY RIGHT TO TRIAL BY JURY OF ANY CLAIM, 
DEMAND, ACTION OR CAUSE OF ACTION ARISING UNDER THIS FACILITY LETTER, THE 
CREDIT LINE NOTE OR ANY OTHER LOAN DOCUMENT OR IN ANY WAY CONNECTED WITH OR 
RELATED OR INCIDENTAL HERETO OR THERETO, IN EACH CASE WHETHER NOW EXISTING OR 
HEREAFTER ARISING, AND WHETHER SOUNDING IN CONTRACT OR TORT OR OTHERWISE; AND 
ANY SUCH CLAIM, DEMAND ACTION OR CAUSE OF ACTION SHALL BE DECIDED BY COURT 
TRIAL WITHOUT A JURY. BORROWER OR BANK MAY FILE AN ORIGINAL COUNTERPART OR A 
COPY OF THIS PARAGRAPH WITH ANY COURT AS WRITTEN EVIDENCE OF THIS CONSENT OF 
BORROWER AND BANK TO WAIVE THEIR RIGHT TO TRIAL BY JURY.

This offer expires on August 8, 1997, unless the executed Loan Documents and 
the corporate resolution and incumbency certificate are returned to the Bank 
by then. If the Effective Date has not occurred by October 30, 1997, this 
Facility letter and the Credit Line Note shall terminate and be of no further 
force and effect on such date.

We look forward to serving you.

Yours truly, 

Union Bank of California, N. A.


By: /s/ Robert John Vernagallo
   ------------------------------
      Robert John Vernagallo,
      Vice President


ACCEPTED AND AGREED:

MCGRATH RENTCORP, a 
California Corporation

By: /s/ Delight Saxton
   ------------------------------

Title: VICE PRESIDENT OF ADMIN
   ------------------------------

By: /s/ Thomas J. Sauer
   ------------------------------

Title: VICE PRESIDENT
   ------------------------------

Date:  July 29, 1997
   -----------


RV/da/11095




                              CREDIT LINE NOTE

- ---------------------------------------------------------------------------
- ---------------------------------------------------------------------------
Borrower Name
McGrath RentCorp, a California corporation
- ---------------------------------------------------------------------------

Borrower Address                        Office               Loan Number

2500 Grant Avenue                       ------------         --------------
San Lorenzo, California 94580           Maturity Date        Amount
                                        June 30, 1998        $3,000,000
- ---------------------------------------------------------------------------
- ---------------------------------------------------------------------------

Date July 24, 1997                                               $3,000,000

FOR VALUE RECEIVED, on June 30, 1998, the undersigned ("Debtor") promises to 
pay to the order of UNION BANK OF CALIFORNIA, N.A. ("Bank") as indicated 
below, the principal sum of THREE MILLION DOLLARS ($3,000,000), or so much 
thereof as is disbursed, together with interest on the balance of such 
principal sum from time to time outstanding, at a per annum rate equal to the 
Reference Rate, such per annum rate to change as and when the Reference Rate 
shall change. Debtor may borrow, repay and reborrow under this note.

As used herein, the term "Reference Rate" shall mean the rate announced by 
Bank from time to time at its corporate headquarters as its "Reference Rate." 
The Reference Rate is an index rate determined by Bank from time to time as a 
means of pricing certain extensions of credit and is neither directly tied to 
any external rate of interest or index nor necessarily the lowest rate of 
interest charged by Bank at any given time. All computations of interest 
under this note shall be made on the basis of a year of 360 days, for actual 
days elapsed.

1.  PAYMENTS.

    1.1  INTEREST PAYMENTS.  Debtor shall pay interest on the last day of each 
month commencing July, 1997. Should interest not be so paid, it shall become 
a part of the principal and thereafter bear interest as herein provided.

    1.2  PRINCIPAL PAYMENTS.  All principal outstanding on this note is due 
and payable on the earlier of June 30, 1998 or any accelerated maturity date.

Debtor shall pay all amounts due under this note in lawful money of the 
United States at Bank's San Francisco Office or such other office as may be 
designated by Bank from time to time.

2.  INTEREST RATE FOLLOWING DEFAULT.  In the event of default, at the option 
of Bank, and, to the extent permitted by law, interest shall be payable on 
the outstanding principal under this note at a per annum rate equal to two 
percent (2%) in excess of the interest rate specified in the initial 
paragraph of this note, calculated from the date of default until all amounts 
payable under this note are paid in full.

                                                                        Page 1



3.  DEFAULT AND ACCELERATION OF TIME FOR PAYMENT.  Default shall include, but 
not be limited to, any of the following: (a) the failure of Debtor to make 
any payment required under this note when due; (b) any breach 
misrepresentation or other default by Debtor, any guarantor, co-maker 
endorser, or any person or entity other than Debtor providing security for 
this note (hereinafter individually and collectively referred to as the 
"Obligor") under any security agreement, guaranty or other agreement between 
Bank and any Obligor; (c) the insolvency of any Obligor or the failure of any 
Obligor generally to pay such Obligor's debts as such debts become due; (d) 
the commencement as to any Obligor of any voluntary or involuntary proceeding 
under any laws relating to bankruptcy, insolvency, reorganization, 
arrangement, debt adjustment or debtor relief; (e) the assignment by any 
Obligor for the benefit of such Obligor's creditors; (f), the appointment, or 
commencement of any proceedings for the appointment, of a receiver, trustee, 
custodian or similar official for all or substantially all of any Obligor's 
property; (g) the commencement of any proceeding for the dissolution or 
liquidation of any Obligor; (h) the termination of existence or death of any 
Obligor; (i) the failure of any Obligor to comply with any order, judgment, 
injunction, decree, writ or demand of any court or other public authority; 
(j) the filing or recording against any Obligor, or the property of any 
Obligor of any notice of levy, notice to withhold, or other legal process for 
taxes other than property taxes; (k) the default by any Obligor liable for 
amounts owed hereunder on any obligation concerning the borrowing of money; 
(i) the issuance against any Obligor or the property of any Obligor, of any 
writ of attachment, execution or other; judicial lien; (m) the deterioration 
of the financial condition of any Obligor which results in Bank deeming 
itself, in good faith, insecure, (n) Debtor's failure to comply with any 
provision of the Multibank Agreement (as defined in the facility letter 
between Debtor and Bank executed in connection herewith), or (o) Debtor's 
failure to comply with any provision of the facility letter between Debtor 
and Bank executed in connection herewith. Upon the occurrence of any such 
default, Bank, in its discretion, may cease to advance funds hereunder and 
may declare all obligations under this note immediately due and payable; 
however, upon the occurrence of an event of default under d, e, f, g, or n 
all principal and interest shall automatically become immediately due and 
payable.

4.  ADDITIONAL AGREEMENTS OF DEBTOR.  If any amounts owing under this note 
are not paid when due, Debtor promises to pay all costs and expenses, 
including reasonable attorney's fees, incurred by Bank in the collection or 
enforcement of this note. Debtor and any endorsers of this note, for the 
maximum period of time and the full extent permitted by law (a) waive 
diligence, presentment, demand notice of nonpayment, protest, notice of 
protest, and notice of every kind; (b) waive the right to assert the defense 
of any statute of limitations to any debt or obligation hereunder; and (c) 
consent to renewals and extensions of time for the payment of any amounts due 
under this note. If this note is signed by more than one party, the term 
'Debtor" includes each of the undersigned and any successors in interest 
thereof; all of whose liability shall be joint and several. The receipt of 
any check or other item of payment by Bank, at its option, shall not be 
considered a payment on account until such check or

                                                                        Page 2



other item of payment is honored when presented for payment at the drawee 
bank. Bank may delay the credit of such payment based upon Bank's schedule of 
funds availability, and interest under this note shall accrue until the 
funds are deemed collected. In any action brought under or arising out of 
this note, Debtor and any endorser of this note, including their successors 
and assigns, hereby consents to the jurisdiction of any competent court 
within the State of California, except as provided in any alternative dispute 
resolution agreement executed between Debtor and Bank, and consents to 
service of process by any means authorized by said state law. The term "Bank" 
includes, without limitation, any holder of this note. This note shall be 
construed in accordance with and governed by the laws of the State of 
California. This note is subject to the terms of the facility letter between 
Debtor and Bank executed in connection herewith but in the event of any 
conflict between the terms of such facility letter and this note the terms of 
this note shall prevail.


MCGRATH RENTCORP, a
California corporation

By: /s/ Delight Saxton
   ------------------------------

Title: Vice President of Admin.
      ---------------------------


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