Watts 0794126|WW0794126 - RK 909RPDA CK1 2-1/2 3 LF LEAD FREE

This first check repair kit is used for replacing or repairing the first check on a 2 1/2 and 3 inch reduced pressure zone 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 the disc and spring assembly, cover O-ring and lubricant.