Watts 1 inch 007M1QT Double Check Valve 3504PCS Body can be used to Body can be used to extend the PVB Standard series Maximum Continuous Operating Voltage (L1 L2): 640 It is ideal for protection in continuous pressure piping applications and at cross connections identified as non health hazards and for contaminants at the service line entrance 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 1 IN Outlet Connection Type Female Threaded Outlet Shutoff Valve Type Quarter Turn Ball Valve Outlet Thread Type NPT Part Number 0063232 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Engineered Plastic Series LF007 Strainer No Tradename None Type Kit