Item - Check Valves Check Valve Mechanism and Body Design Union Check Valve Body Material - Valves PVC Pipe or Tube Size 1 1/2 in Connection Type Compression x Compression Mounting Orientation Horizontal Vertical Max Temp - Valves 130 Degrees F Max Water Pressure - Valves 50 psi Full Flow - Valves Yes Application - Valves Plumbing Length 10 1/2 in Standards CE CSA NSF UL