Watts RK 770-CK4 4 - Part of the RK-770 Series American Wick Drain and only stops root tip

and only stops root tip cell division where the fabric is placed

and reliable performance under varied weather conditions

and ideal for draining light flows from pool and spa decks

wash racks

chemical resistant silicone seat disc and an atmospheric vent to prevent spilling

Watts RK 770-CK4 4 - Part of the RK-770 Series American Wick Drain and only stops root tipThis 4 IN check valve repair kit for series 770 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 spring assembly and a cover O ring. Check with local inspection authorities for installation requirements. Features Factory Replacement Kit No special tools required for changing parts All parts are made of high quality