Description Mueller Fill & drain valve 2.0 GPM Mueller Fill & drain valve Comes complete and assembled. Includes parts shown. Diaphragm, and stainless fill pipe are already installed. For 1600 to 2000 gallon tanks 2.0 gpm typically used on 1.5 hp wash pump Related items; M-30945K Diaphragm kit M-92847 (1.2 gpm) Mueller Complete Fill & drain valve 300 to 700 gallon tanks with 3/4 hp pump motor M-92848 (1.5 gpm) Mueller Complete Fill & drain valve 800 to 1600 gallon tanks with 3/4 hp pump motor M-92860 (2.0 gpm) Mueller Complete Fill & drain valve 1600 to 2000 gallon tanks with 1.5 hp pump motor M-8801151 (3.0 gpm)Mueller Complete Fill & drain valve 2000 gallon and larger tanks with 1.5 hp pump motor Updated March 2026