Adjustable Relief Valve Body Material PVC Inlet Type FNPT Outlet Type FNPT Inlet Size 3/4 in Outlet Size 3/4 in Factory Set Pressure 25 psi Pressure Range 5 to 75 psi Disc Material PVC Overall Height 6 7/8 in Overall Length 3 1/8 in Seat Material EPDM Spring Material Coated Stainless Steel Temp Range 40 Degrees to 140 Degrees F Test Lever No