Watts 3 957 NRS FP Part of the 957 Series Geotextile This 2 inch lead free This 2 inch lead free reduced pressure zone backflow preventer assembly with its exclusive design incorporating the patented air inch and water out principle for protection during an emergency condition prevents the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure Specifications ArmorTek Technology No Backflow Preventer Type Double Check Detector Assembly Body Finish Stainless Steel Body Material Stainless Steel Body Pattern Inline Brand Watts Buy American Act Compliant NO Bypass Yes Bypass Size 3 4 IN Cap And Tether No Disc Material Silicone EAN 098268120783 Elbow Fitting No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 2 1 2 IN Inlet Connection Size Metric 65 MM Inlet Connection Type Flanged Joint Inlet Shutoff Valve Type Outside Stem And Yoke Gate Valve Inlet Thread Type Does Not Apply To Product Lead Free No Maximum Temperature Fahrenheit 140 Maximum Working Pressure BAR 12 The maximum working pressure is 175 psi (12 Groove couplings for ease of installation and pipe alignment