EXHIBIT 99.3

                                AMENDMENT TO THE

                            MUELLER INDUSTRIES, INC.

                             1994 STOCK OPTION PLAN

     WHEREAS, the Board of Directors of Mueller Industries, Inc. (the "Company")
has resolved to amend the Company's 1994 Stock Option Plan (the "Plan") to
clarify that the anti-dilution adjustment language of Section 7(a) of the Plan
includes the authority to make adjustments for extraordinary dividends declared
on the Company's common stock, par value $0.01 per share, whether payable in the
form of cash, stock or any other form of consideration;

     NOW, THEREFORE, the Plan is hereby amended as follows (this amendment is
hereinafter referred to as the "Amendment"):

     1. The first sentence of Section 7(a) of the Plan, entitled Adjustment Upon
Changes in Capitalization, is hereby replaced in its entirety by the following:

               "In the event that (i) the outstanding shares of Common Stock are
               changed by reason of reorganization, merger, consolidation,
               recapitalization, reclassification, stock split, combination or
               exchange of shares and the like, or dividends payable in shares
               of Common Stock, or (ii) an extraordinary dividend is declared by
               the Company on the Common Stock, whether payable in the form of
               cash, stock or any other form of consideration (including
               debentures), an appropriate adjustment shall be made by the
               Committee in the aggregate number of shares of Common Stock
               available under the Plan and in the number of shares of Common
               Stock and price per share of Common Stock subject to outstanding
               Options."

     2. Except as expressly amended by this Amendment, the remaining terms and
provisions of the Plan shall remain unchanged and continue in full force and
effect.

     IN WITNESS WHEREOF, the Company has caused its name to be ascribed to this
Amendment by its duly authorized representative as of the 1st day of September,
2004.

                                          MUELLER INDUSTRIES, INC.


                                          BY:  /s/ William H. Hensley
                                             ------------------------
                                          NAME:  William H. Hensley