Description Mueller Fill & drain valve. 1.2 GPM. Made in USA Mueller Fill & drain valve Comes complete and assembled. Includes parts shown. Diaphragm, and stainless fill pipe are already installed. For small tanks less than 700 gallon 1.2 gpm typically with a 1/3 hp motor Original Parts by Paul Mueller Co Made in USA 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
