Watts RK 770DCDA-RC4 4 - Part of the RK-770 Series ZC100F-3NH designed with an FDA-approved polypropylene

designed with an FDA-approved polypropylene liner and Butyl rubber diaphragm

debris entry

Available in both black and white colors

while the durable construction ensures long-term performance under heavy use

Watts RK 770DCDA-RC4 4 - Part of the RK-770 Series ZC100F-3NH designed with an FDA-approved polypropyleneThis 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. Features Factory replacement kit No special tools required for changing parts All parts