WW0887093, Watts, 8 Backflow Preventer Double Check Valve Assembly Kit, 770-Rc

This 8 IN check rubber parts replacement kit for series 770-RC is designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements. This kit consists of a cover O-ring, bolt O-ring and a disc - for one check. Check with local inspection authorities for installation requirements.