Spring Y Check Valve Material of Construction PVC Size 1/2 In. Connection Type Socket Length 6-41/64 In. Width 2 In. Overall Height 5-45/64 In. Cap to Inlet Center 4-29/32 In. Max Water Pressure 150 psi @ 70 Degrees F Cracking Pressure 2 to 15 psi Max Temp 140 Degrees F Mounting Position Vertical or Horizontal Seat Material FPM Spring Material Stainless Steel Seal Material FPM Flow 0.8 gpm Hex Size 1 In.