Specification Brand : John Guest BulletPoint1 : External Testing Certification NSF BulletPoint2 : John Guest fittings BulletPoint3 : ✅ COMPLIANT; NSF listed, meets UPC, IPC and cUPC standards, ASTMF-2159, PPSU, Lead free, non-corrosive, with a Dynamic "PTFE" solid ball stop and a "Viton/FKM-“O”- Ring inside for a "posi-seal-stop". Can withstand a high operating range of 200F and 200PSI, the "HIGHEST RATING IN IT'S CLASS". BulletPoint4 : ✅ EASY INSTALLATION; Arrows point liquid flow direction, ACTUAL SIZE 15/32"x 15/32” OD, Barb x Barb push-in quick connection for Hose, Pex, cpvc. Its durable alloy body allows for mechanical stainless steel clamps or crimping-rings brass/copper to secure a tight connection. BulletPoint5 : ✅ WARNING!!! "SIZE"- (OD)is smaller than 1/2"inch,look at "ACTUAL SIZE"!!..✅ WARRANTY; If it fails! Within 3yrs of purchase, WE WILL BUY IT BACK! See wrnty. CareInstructions : Hand Wash Color : White ExteriorFinish : Plastic ExternallyAssignedProductIdentifier1 : 696737140586 ExternallyAssignedProductIdentifier2 : 0696737140586 ExternallyAssignedProductIdentifier3 : 3688881212124 ExternallyAssignedProductIdentifier4 : 7535001276169 ExternalTestingCertification : NSF IncludedComponents : check valve ItemDisplayDimensions_Height : 0.4 inches ItemDisplayDimensions_Length : 8 inches ItemDisplayDimensions_Width : 5 inches ItemDisplayWeight : 0.6 ounces ItemName : JOHN GUEST 1/4" One Way Check Valve RO Reverse Osmosis Water Filter NSF Certifie ItemPackageDimensions_Height : 7.7978 centimeters ItemPackageDimensions_Length : 1.6002 centimeters ItemPackageDimensions_Width : 2.2098 centimeters ItemPackageQuantity : 1 ItemShape : round ItemTypeKeyword : industrial-check-valves Manufacturer : John Guest Material : Plastic Material1 : Plastic Material2 : Metal MaximumOperatingPressure : 80 pounds_per_square_inch ModelName : CKV ModelNumber : John Guest NumberOfItems : 1 NumberOfPorts : 2 PackageLevel : unit PartNumber : John Guest Pattern : .5 - cracking PSI ProductBenefit : Ensures protection against reversal of flow with low headloss design, not suitable for air and vacuum applications ProductDescription : Premium USA Quality Plastic 1/2”inch PEX Check Valve Posi-Seal Anti-Back Flow Its high strength super advanced “PTFE” solid ball and a “Viton/FKM”-“O”- Ring encased by a poly-alloy durable Plastic that can withstand operating pressures of up to 80psi and high temperatures of up to 200F. Perfect solution for conditions in-line where Brass, Aluminum and copper create corrosion conditions that affects or compromises the quality of fluid flowing. Engineered Dynamic Design Called “Max-Flo-Chek” tm. This design allows for maximum flow in-line, when positive moving fluid flow occurs, the ball moves freely to a center cavity away from sealing “O” ring allowing for maximum flow all around the ball with zero fluid resistance. On an instant, negative or reverse fluid flow occurs, fluid pushes ball back into its posi-seal “O” ring for a solid stop. In this innovative dynamic design there are no hinged flaps, pins, screws, springs, diaphragms, rubber to restrict flow, malfunction, break or contaminate. To be used in vertical configuration. ProductSiteLaunchDate : 2012-11-28T08:48:09.304Z Size : 1 Count (Pack of 1) SpecificationMet : NSF, UPC, IPC, cUPC Style : PEX Check Valve 1/2" SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 47101500 ValveType : Check Valve