| 
               FOR
      IMMEDIATE RELEASE 
             | 
            
               Contact: 
             | 
            
               Kent
      A. McKee 
             | 
          
| 
               Memphis,
      TN—October 20, 2009 
             | 
            
               (901)
      753-3208 
             | 
          
| 
               | 
            
               · 
             | 
            
               “We
      continue to generate cash by intensively managing working capital and
      monitoring capital expenditures. Mueller ended the quarter with $353.9
      million in cash, or $9.40 per share.  Our financial position
      remains strong. 
             | 
          
| 
               | 
            
               · 
             | 
            
               “Total
      stockholders’ equity was $737.8 million which equates to a book value per
      share of $19.60. 
             | 
          
| 
               | 
            
               · 
             | 
            
               “Mueller’s
      current ratio remains excellent at 4.4 to 1 and our working capital is
      $608.8 million.  Leverage is conservative with a ratio of debt
      to total capitalization at 18.8
percent. 
             | 
          
| 
               | 
            
               · 
             | 
            
               “The
      Comex average price of copper was $2.67 per pound in the third quarter of
      2009, which compares with $3.45 per pound in the third quarter of
      2008. 
             | 
          
| 
               | 
            
               · 
             | 
            
               “Our
      Plumbing & Refrigeration segment posted operating earnings of $16.0
      million on net sales of $240.9 million compared with operating earnings of
      $25.4 million on net sales of $371.3 million in the third quarter of
      2008.  Due to lower throughput volumes, we experienced higher
      per unit conversion costs. 
             | 
          
| 
               | 
            
               · 
             | 
            
               “Our
      OEM segment posted operating earnings of $16.5 million during the third
      quarter of 2009 on net sales of $181.6 million, which compared with
      operating earnings of $10.6 million on net sales of $299.5 million for the
      same period in 2008.” 
             | 
          
| 
                     For the Quarter Ended 
                   | 
                  
                     For the Nine Months Ended 
                   | 
                  |||||||||||||||
| 
                     September 26, 
                   | 
                  
                     September 27, 
                   | 
                  
                     September 26, 
                   | 
                  
                     September 27, 
                   | 
                  |||||||||||||
| 
                     2009 
                   | 
                  
                     2008 
                   | 
                  
                     2009 
                   | 
                  
                     2008 
                   | 
                  |||||||||||||
| 
                     (Unaudited) 
                   | 
                  
                     (Unaudited) 
                   | 
                  |||||||||||||||
| 
                     Net
      sales 
                   | 
                  $ | 419,890 | $ | 665,496 | $ | 1,114,248 | $ | 2,123,075 | ||||||||
| 
                     Cost
      of goods sold 
                   | 
                  354,039 | 588,469 | 954,775 | 1,861,475 | ||||||||||||
| 
                     Depreciation
      and amortization 
                   | 
                  10,441 | 11,529 | 31,276 | 33,517 | ||||||||||||
| 
                     Selling,
      general, and administrative expense 
                   | 
                  27,593 | 35,674 | 89,067 | 108,583 | ||||||||||||
| 
                     Operating
      income 
                   | 
                  27,817 | 29,824 | 39,130 | 119,500 | ||||||||||||
| 
                     Interest
      expense 
                   | 
                  (2,435 | ) | (5,050 | ) | (7,553 | ) | (15,755 | ) | ||||||||
| 
                     Other
      (expense) income, net 
                   | 
                  (324 | ) | 2,573 | 688 | 9,103 | |||||||||||
| 
                     Income
      before income taxes 
                   | 
                  25,058 | 27,347 | 32,265 | 112,848 | ||||||||||||
| 
                     Income
      tax expense 
                   | 
                  (6,246 | ) | (8,422 | ) | (9,796 | ) | (37,992 | ) | ||||||||
| 
                     Consolidated
      net income 
                   | 
                  18,812 | 18,925 | 22,469 | 74,856 | ||||||||||||
| 
                     Less:
      net income attributable to noncontrolling interest 
                   | 
                  (146 | ) | (254 | ) | (267 | ) | (1,816 | ) | ||||||||
| 
                     Net
      income attributable to Mueller Industries, Inc. 
                   | 
                  $ | 18,666 | $ | 18,671 | $ | 22,202 | $ | 73,040 | ||||||||
| 
                     Weighted
      average shares for basic earnings per share 
                   | 
                  37,474 | 37,136 | 37,253 | 37,117 | ||||||||||||
| 
                     Effect
      of dilutive stock options 
                   | 
                  72 | 176 | 89 | 238 | ||||||||||||
| 
                     Adjusted
      weighted average shares for diluted earnings per share 
                   | 
                  37,546 | 37,312 | 37,342 | 37,355 | ||||||||||||
| 
                     Basic
      earnings per share 
                   | 
                  $ | 0.50 | $ | 0.50 | $ | 0.60 | $ | 1.97 | ||||||||
| 
                     Diluted
      earnings per share 
                   | 
                  $ | 0.50 | $ | 0.50 | $ | 0.59 | $ | 1.96 | ||||||||
| 
                     Dividends
      per share 
                   | 
                  $ | 0.10 | $ | 0.10 | $ | 0.30 | $ | 0.30 | ||||||||
| 
                     Summary Segment Data: 
                   | 
                  ||||||||||||||||
| 
                     Net
      sales: 
                   | 
                  ||||||||||||||||
| 
                     Plumbing
      & Refrigeration Segment 
                   | 
                  $ | 240,878 | $ | 371,315 | $ | 661,035 | $ | 1,159,613 | ||||||||
| 
                     OEM
      Segment 
                   | 
                  181,621 | 299,470 | 459,898 | 979,665 | ||||||||||||
| 
                     Elimination
      of intersegment sales 
                   | 
                  (2,609 | ) | (5,289 | ) | (6,685 | ) | (16,203 | ) | ||||||||
| 
                     Net
      sales 
                   | 
                  $ | 419,890 | $ | 665,496 | $ | 1,114,248 | $ | 2,123,075 | ||||||||
| 
                     Operating
      income: 
                   | 
                  ||||||||||||||||
| 
                     Plumbing
      & Refrigeration Segment 
                   | 
                  $ | 15,986 | $ | 25,449 | $ | 38,199 | $ | 85,903 | ||||||||
| 
                     OEM
      Segment 
                   | 
                  16,530 | 10,643 | 18,315 | 55,180 | ||||||||||||
| 
                     Unallocated
      expenses 
                   | 
                  (4,699 | ) | (6,268 | ) | (17,384 | ) | (21,583 | ) | ||||||||
| 
                     Operating
      income 
                   | 
                  $ | 27,817 | $ | 29,824 | $ | 39,130 | $ | 119,500 | ||||||||
| 
                   September
      26, 
                 | 
                
                   December
      27, 
                 | 
                |||||||
| 
                   2009 
                 | 
                
                   2008 
                 | 
                |||||||
| 
                   (Unaudited) 
                 | 
                ||||||||
| 
                   ASSETS 
                 | 
                ||||||||
| 
                   Cash
      and cash equivalents 
                 | 
                $ | 353,874 | $ | 278,860 | ||||
| 
                   Accounts
      receivable, net 
                 | 
                225,316 | 219,035 | ||||||
| 
                   Inventories 
                 | 
                178,372 | 210,609 | ||||||
| 
                   Other
      current assets 
                 | 
                30,327 | 46,322 | ||||||
| 
                   Total
      current assets 
                 | 
                787,889 | 754,826 | ||||||
| 
                   Property,
      plant, and equipment, net 
                 | 
                258,278 | 276,927 | ||||||
| 
                   Other
      assets 
                 | 
                151,429 | 151,160 | ||||||
| $ | 1,197,596 | $ | 1,182,913 | |||||
| 
                   LIABILITIES
      AND EQUITY 
                 | 
                ||||||||
| 
                   Current
      portion of debt 
                 | 
                $ | 12,372 | $ | 24,184 | ||||
| 
                   Accounts
      payable 
                 | 
                70,380 | 63,732 | ||||||
| 
                   Other
      current liabilities 
                 | 
                96,346 | 113,668 | ||||||
| 
                   Total
      current liabilities 
                 | 
                179,098 | 201,584 | ||||||
| 
                   Long-term
      debt, less current portion 
                 | 
                158,226 | 158,726 | ||||||
| 
                   Pension
      and postretirement liabilities 
                 | 
                39,180 | 38,452 | ||||||
| 
                   Environmental
      reserves 
                 | 
                23,090 | 23,248 | ||||||
| 
                   Deferred
      income taxes 
                 | 
                33,435 | 33,940 | ||||||
| 
                   Other
      noncurrent liabilities 
                 | 
                1,401 | 1,698 | ||||||
| 
                   Total
      liabilities 
                 | 
                434,430 | 457,648 | ||||||
| 
                   Total
      Mueller Industries, Inc. stockholders' equity 
                 | 
                737,799 | 700,683 | ||||||
| 
                   Noncontrolling
      interest 
                 | 
                25,367 | 24,582 | ||||||
| 
                   Total
      equity 
                 | 
                763,166 | 725,265 | ||||||
| $ | 1,197,596 | $ | 1,182,913 | |||||
| 
                       For the Nine Months Ended 
                     | 
                    ||||||||
| 
                       September 26, 
                     | 
                    
                       September 27, 
                     | 
                    |||||||
| 
                       2009 
                     | 
                    
                       2008 
                     | 
                    |||||||
| 
                       (Unaudited) 
                     | 
                    ||||||||
| 
                       Operating
      activities: 
                     | 
                    ||||||||
| 
                       Net
      income attributable to Mueller Industries, Inc. 
                     | 
                    $ | 22,202 | $ | 73,040 | ||||
| 
                       Reconciliation
      of net income attributable to Mueller Industries, 
                     | 
                    ||||||||
| 
                       Inc.
      to net cash provided by operating activities: 
                     | 
                    ||||||||
| 
                       Depreciation
      and amortization 
                     | 
                    31,440 | 33,984 | ||||||
| 
                       Gain
      on early retirement of debt 
                     | 
                    (128 | ) | (2,482 | ) | ||||
| 
                       Net
      income attributable to noncontrolling interest 
                     | 
                    267 | 1,816 | ||||||
| 
                       Stock-based
      compensation expense 
                     | 
                    1,892 | 2,238 | ||||||
| 
                       Loss
      on disposal of properties 
                     | 
                    975 | 306 | ||||||
| 
                       Deferred
      income taxes 
                     | 
                    (2,012 | ) | (515 | ) | ||||
| 
                       Income
      tax benefit from exercise of stock options 
                     | 
                    (189 | ) | (92 | ) | ||||
| 
                       Changes
      in assets and liabilities: 
                     | 
                    ||||||||
| 
                       Receivables 
                     | 
                    (3,030 | ) | (29,130 | ) | ||||
| 
                       Inventories 
                     | 
                    35,339 | 6,635 | ||||||
| 
                       Other
      assets 
                     | 
                    4,152 | (5,350 | ) | |||||
| 
                       Current
      liabilities 
                     | 
                    (6,229 | ) | (16,027 | ) | ||||
| 
                       Other
      liabilities 
                     | 
                    (337 | ) | 784 | |||||
| 
                       Other,
      net 
                     | 
                    17 | (719 | ) | |||||
| 
                       Net
      cash provided by operating activities 
                     | 
                    84,359 | 64,488 | ||||||
| 
                       Investing
      activities: 
                     | 
                    ||||||||
| 
                       Capital
      expenditures 
                     | 
                    (11,002 | ) | (17,871 | ) | ||||
| 
                       Net
      withdrawals from restricted cash balances 
                     | 
                    12,806 | 678 | ||||||
| 
                       Proceeds
      from sales of properties 
                     | 
                    611 | 77 | ||||||
| 
                       Net
      cash provided by (used in) investing activities 
                     | 
                    2,415 | (17,116 | ) | |||||
| 
                       Financing
      activities: 
                     | 
                    ||||||||
| 
                       Repayments
      of long-term debt 
                     | 
                    (370 | ) | (23,650 | ) | ||||
| 
                       Dividends
      paid to stockholders of Mueller Industries, Inc. 
                     | 
                    (11,186 | ) | (11,133 | ) | ||||
| 
                       Dividends
      paid to noncontrolling interests 
                     | 
                    (1,449 | ) | - | |||||
| 
                       Repayment
      of debt by joint venture, net 
                     | 
                    (11,813 | ) | (12,491 | ) | ||||
| 
                       Issuance
      of shares under incentive stock option plans 
                     | 
                    ||||||||
| 
                       from
      treasury 
                     | 
                    8,678 | 1,074 | ||||||
| 
                       Income
      tax benefit from exercise of stock options 
                     | 
                    189 | 92 | ||||||
| 
                       Acquisition
      of treasury stock 
                     | 
                    (416 | ) | (31 | ) | ||||
| 
                       Net
      cash used in financing activities 
                     | 
                    (16,367 | ) | (46,139 | ) | ||||
| 
                       Effect
      of exchange rate changes on cash 
                     | 
                    4,607 | (1,500 | ) | |||||
| 
                       Increase
      (decrease) in cash and cash equivalents 
                     | 
                    75,014 | (267 | ) | |||||
| 
                       Cash
      and cash equivalents at the beginning of the period 
                     | 
                    278,860 | 308,618 | ||||||
| 
                       Cash
      and cash equivalents at the end of the period 
                     | 
                    $ | 353,874 | $ | 308,351 | ||||