WW0887082, Watts, 4 Backflow Preventer Double Check Detector Valve Assembly Kit, 770Dcda-Rc

This 4 IN check rubber parts repair kit for series 770DCDA-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.