Exhibit 19.1 Mueller's First Quarter Earnings Per Share More Than Doubles Over Same Quarter Last Year To Our Stockholders, Customers, and Employees The first quarter of 2006 was Mueller's best first quarter ever. Net income was $33.4 million, or 90 cents per diluted share, compared with $15.2 million, or 41 cents per diluted share, for the same quarter last year. Sales for the first quarter of 2006 were $551.0 million, a 37 percent increase over sales of $401.7 million for the first quarter of 2005. The sales increase was largely due to the increased cost of copper, our principal raw material, which is reflected in the price of our finished products. The Comex average price of copper was $2.25 per pound in the first quarter of 2006 versus $1.47 per pound in the first quarter of 2005. Margins in our core product lines remained on a good track, which continued the positive trend reflected in the fourth quarter of last year. We also benefited from our operations in Europe and Asia, which performed well. We ended the first quarter with $83.2 million in cash on hand, despite additional funding of accounts receivables and inventories caused by continued rising raw material costs. The residential construction sector will likely slow in 2006; however, the number of housing starts will remain at the high end of historical levels. On the other hand, commercial construction activity has picked up and it appears that it will continue to grow in 2006. If this scenario develops, Mueller is well-positioned, as our commercial business significantly contributes to our results. Our Annual Stockholders' Meeting will be held at Mueller's headquarters in Memphis, Tennessee on May 4, 2006. We hope you can attend, but if you cannot, we urge you to sign and return your proxy card. Very Truly Yours, /s/Harvey L. Karp /s/William D. O'Hagan Harvey L. Karp William D. O'Hagan Chairman of the Board President and Chief Executive Officer April 25, 2006 Statements in this release that are not strictly historical may be "forward- looking" statements, which involve risks and uncertainties. These include economic and currency conditions, continued availability of raw materials, market demand, pricing, and competitive and technological factors, among others, as set forth in the Company's SEC filings. -1-