A.Y. McDonald Mfg. Co. is a leading manufacturer of Waterworks Brass, Plumbing Valves, Pumps and Water Systems and High Pressure Gas Valves and Meter Bars.
The company has distinguished itself with a proud tradition of quality and reliability since its founding in 1856.
A.Y. McDonald Manufacturing Company P.O. Box 508 Dubuque, IA 52004-0505 Phone:(563)583-7311 Fax: (563)588-0720 www.aymcdonald.com
