WW0887090, Watts, 8 Backflow Preventer Double Check Detector Valve Assembly Kit, 770Dcda

This 8 IN repair kit for series 770DCDA 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 two cover O-rings, two bolts O-ring, two disc, two spring assemblies for both checks. Check with local inspection authorities for installation requirements.