Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves PVC Pipe or Tube Size 3/4 in Connection Type FNPT x FNPT Cracking Pressure 0.25 psi Mounting Orientation Horizontal Vertical Seal Material EPDM Max Temp - Valves 140 Degrees F Min Temp - Valves 14 Degrees F Max Water Pressure - Valves 150 psi @ 70 Degrees F Max Steam Pressure - Valves Not Rated Seat Material PVC Flow - Valves 12.47 gpm Full Flow - Valves Yes