Fits 1 inch LF009M2 and 1 inch 009M2

This total 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, two discs, two disc assemblies, stem O-rings, cover O-ring, two seat O-rings and RV seat O-ring.