Check Valve, Polysulfone, 1/2 In Price For: Each Material of Construction: Polysulfone Standards: FDA Approved, NSF 14 And 61 Certified, CSA B137.5, ASTM F87 7, NSF UP, IAPMO IGC 188-2004c Certified Max. Temp.: 180 Degrees F Max. Water Pressure: 250 psi Length: 3-5/16" Size: 1/2" Sub-Category: Polysulfone Item: Check Valve Connection Type: Push Width: 1-1/8" Country of Origin (subject to change): United States