A.Y. McDonald. 852 likes. 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
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.
The mission of A.Y. McDonald Mfg. Co., in the words of our founder, is "to make good products and sell them honestly." We,...
Founded in 1856, A.Y. McDonald Manufacturing Company manufactures waterworks brass, high-pressure gas valves, meter bars and plumbing valves, pumps and water systems. The company is headquartered in Dubuque, Iowa.