Watts 0887306|WW0887306 - RK 009 M2 RV 1-1/4 to 1-1/2

This 1-1/4 to 1-1/2 IN 009M2 RP 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 backsiphonage and or backpressure. This kit consists of a diaphragm, seat O-ring, cover O-ring and sensing passage O-ring.