Adjustable Antisiphon Relief Valve, Body Material PVC, Inlet Type FNPT, Outlet Type FNPT, Inlet Size 3/4 in, Outlet Size 3/4 in, Pressure Range 5 to 100 psi, Overall Height 9 in, Application Concentrated Etchants, Ultra-Pure Water, Water, Overall Length 3 in, Seat Material PTFE, Spring Material Zinc-Plated Steel, Temp. Range 32 Degrees to 140 Degrees F, Test Lever No