Watts 7018130 Repair Kit, 2-1/2"-4" Backflow, Second Check, RK-757 Series

This 2 1/2-4 IN second check repair kit for series 757 and 757DCDA helps to prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. It features a second check module, check module O-ring and red silicone disc elastomer. It is designed for non-health hazard applications.

• Fits Popular Models: RK757/757DCDA-CK2 21/2-4
• Repair Kit Used On: Series 757/757DCDA Double Check Valve and Detector Assembly, Backflow Preventing Valve
• Safety Data Sheet: SDS