Item - Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Inline Spring Swing, Body Material - Valves PVC, Pipe or Tube Size 3/4 in, Connection Type Slip x Slip, Cracking Pressure 0.5 psi, Mounting Orientation Horizontal, Vertical, Seal Material 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, Seat Material PVC, Spring Material Stainless Steel, Flow - Valves 100 gpm