Watts: 1″ –  Total Rubber Parts Kit for a 919 Reduced Pressure Zone Assembly (Same as 7018507)

Ames: 1″ – Total Rubber Kit for a 400B RP

Kit Includes: 2 Check Discs, 2 Check Seat O-Rings, 2 Check Cover O-Rings, Relief Valve Disc, RV O-Ring, and RV Cover O-Ring, Relief Valve Diaphragm