Watts LFRK909M1-RV 0794150 4 inch Through 10 inch Backflow Preventer Relief Valve Rubber Parts Repair Kit

Fits 4 inch 909, 6 inch 909, 8 inch 909M1, and 10 inch 909M1

This kit contains the rubber parts for the repair of the backflow preventer relief valve. This kit consists of a diaphragm, disc, molded disc assembly, piston O-ring, stem O-ring and cover O-ring.