Watts 757-OSY-FXG 8 - Part of the 757 Series Basement Window Well NPT male inlet and NPT

NPT male inlet and NPT female outlet connections

ZN415J-4IC

Debris is captured in the removable trash bucket

50 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 4 IN Outlet Connection Type Grooved Joint Outlet Shutoff Valve Type Outside Stem And Yoke Gate Valve Outlet Thread Type Does Not Apply To Product Part Number 0191639 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Engineered Plastic Series 957 Strainer No Technologies Does Not Apply To Product Tradename None Specification Sheet - 957

UPC - 098268398649

Watts 757-OSY-FXG 8 - Part of the 757 Series Basement Window Well NPT male inlet and NPTThis 8 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazards and from other contaminants found at the service line