Fits 1-1/4 inch LF909M1, 1-1/2 inch LF909M1, 2 inch LF909M1, 1-1/4 inch 909M1, 1-1/2 inch 909M1, and 2 inch 909M1

This total rubber parts kit is used for replacing or repairing the relief valve assembly on a lead free reduced pressure backflow assembly used 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 molded disc assemblies, two seat O-rings, RV O-ring, two piston O-rings, RV stem O-ring, flow tube O-ring and cover O-ring.