Watts 0794111|WW0794111 - RK 909RPDA RV 2-1/2 3 LF LEAD FREE

This relief valve rubber parts repair kit is used for replacing or repairing the relief valve assembly on a 2 1/2 and 3 inch reduced pressure zone assembly which is 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 sleeve O-ring, seat O-ring, piston O-ring, stem O-ring, RV disc assembly, diaphragm, piston seal, bottom plug O-ring, adapter O-ring and lubricant.