Watts LF909 OSY S FDA FS 6 Part of the LF909 Large Series Window Well Extension Keep pipe clogging leaves and debris Keep pipe clogging leaves and debris out of the drainage system with the Dura Slope® Channel Drain Grate Specifications ArmorTek Technology Yes Backflow Preventer Type Double Check Valve Assembly Body Finish Epoxy Coated Using ArmorTek Technology Body Material Cast Iron Body Pattern Inline Brand Watts Buy American Act Compliant NO Bypass No Cap And Tether No EAN 098268437430 Elbow Fitting No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 3 IN Inlet Connection Type Flanged Joint Inlet Shutoff Valve Type No Shutoff Valve Lead Free YES Maximum Temperature Fahrenheit 110 Maximum Working Pressure BAR 12 When activated through an add on sensor connection kit outside stem and yoke resilient seated gate valves