Watts RK 009-RV 3/4-1 Relief Valve Kit

This relief valve rubber parts replacement kit is used for repairing the parts to the relief valve to prevent the reverse flow of polluted water from entering into the potable water supply due to back siphonage and or backpressure. This kit consists of a diaphragm, disc assembly, stem O-ring, seat O-ring and cover O-ring.