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WW0888902, Watts, 3-4 Backflow Preventer Second Check Valve Replacement Kit, 775 And 775Dcda
Item #: WW0888902
Manufacturer: Watts
Supplier #: 0888902
This 3-4 IN second check detector valve replacement kit for series 775 and 775DCDA prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. This kit consists of a second check module, check module O-ring and a red silicone disc elastomer. It is designed for non-health hazard applications. It is used primarily on fire sprinkler lines when it is necessary to monitor unauthorized use of water.