Watts 957-OSY-FXG 4 - Part of the 957 Series Egress System a bonnet with silicone rubber

a bonnet with silicone rubber O-ring seal

Bleed Screw Kit Type Cover Kit Lead Free YES Product Group BACKFLOW KITS UPC - 098268458862

Specifications Body Finish Chrome Plated Body Material Bronze Brand Watts Control Type Key EAN 098268569285 Frost Free No Inlet Connection Size 1 IN Inlet Connection Size-Metric 25 MM Inlet Connection Type Union Male Threaded Inlet Thread Type NPT Lead Free NO Outlet Connection Size 1 IN Outlet Connection Type Union Joint Outlet Thread Type NPT Part Number 0722046 Series TWS Wall Thickness 10 IN With Vacuum Breaker Yes Specification Sheet - TWS

Specifications Body Material Cast Iron Brand Watts Buy American Act Compliant YES FreeArea 137 SQ IN Lead Free Not In Scope Outlet Connection Size 6 IN Outlet Connection Type No Hub OverflowDome No OverflowDrain Does Not Apply To Product Specification Sheet - RD-300

Features Corrosion resistant material

Watts 957-OSY-FXG 4 - Part of the 957 Series Egress System a bonnet with silicone rubberThis 4 inch reduced pressure zone assembly backflow preventer helps prevent the reverse flow of fire protection substances and 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. This extremely compact and lighter than a traditional designed assembly is approved for horizontal installation as long