Item - Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Inline Spring Swing, Body Material - Valves PVC, Pipe or Tube Size - Check Valves 3/4 in, Connection Type - Check Valves FNPT x FNPT, Cracking Pressure - Check Valves 0.5 psi, Mounting Orientation - Check Valves Horizontal, Vertical, Seal Material - Check Valves NBR, Max. Temp. - Valves 73 Degrees F, Min. Temp. - Valves 35 Degrees F, Max. Water Pressure - Valves 150 psi, Max. Steam Pressure - Valves Not Rated