Watts 957NRPDA OSY CFM 10 Part of the 957RPDA Series snake fencing The unit comes with a The unit comes with a fastener system engineered to withstand hurricane force winds and is still easy to remove when necessary Specifications Actuation No Assembled Dry Yes Balance Stop Plate No Ball Material 316 Stainless Steel Body Finish Bronze Body Material Bronze Brand Watts Buy American Act Compliant YES Class Rating Does Not Apply To Product Control Type Lever Handle CV Rating Does Not Apply To Product EAN 098268764192 Electrical Rating Does Not Apply To Product Inlet Connection Size 1 1 4 IN Inlet Connection Size Metric 32 MM Inlet Connection Type Socket Inlet Thread Type Does Not Apply To Product Lead Free YES Maximum Temperature Fahrenheit 400 Minimum Temperature Celsius 40 06 Maximum Working Pressure PSI 175 Meter Type CFM Minimum Temperature Celsius 0 This 10 inch reduced pressure detector backflow preventer assembly is designed to 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