Specification Brand : Watts Water Technologies BulletPoint : Rolair CV4X4TWB Check Valve W/Bleeder 1/2X1/2 BulletPoint1 : [Size] - Tube Inner Diameter: 4mm / 0.16"; Tube Outer Diameter: 5mm / 0.2"; Overall Size: 17 x 34mm / 0.7"x 1.3"(W*H) BulletPoint2 : [Application] - Commonly utilized in various sectors such as water treatment, air purification, automotive components, machinery, devices, household appliances, and more. BulletPoint3 : [Advantage] - Made from PP plastic material with good sealing performance, safety, and durability. The inner gasket is made of silicone rubber, can be resistant to 392℉(200℃) temperatures, and is suitable for drinking water, hot water, air, and steam, but not suitable for petrol. BulletPoint4 : [Instruction] - A check valve is utilized in a fluid system to stop the backward flow of fluid or in a pneumatic system to prevent the backflow of compressed air. BulletPoint5 : [Note] - Please check the outer diameter before buying, make sure it will fit your hose. Color : One Color Department : Unisex Adult ExteriorFinish : Rubber,Stainless Steel ExternallyAssignedProductIdentifier : 7320488076056 ExternallyAssignedProductIdentifier1 : 0098268385175 ExternallyAssignedProductIdentifier2 : 00098268385175 ExternallyAssignedProductIdentifier3 : 098268385175 ItemName : WATTS WATER TECHNOLOGIES 9D-M2-3/4 3/4IN Connections Threaded, 1/2IN Vent, Brass Body, Stainless Steel Internal Parts, with Atmospheric Vent, BACKFLOW Preventer, Series 9D, 175PSI ItemPackageDimensions_Height : 0.79 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 1 ItemTypeKeyword : industrial-check-valves Manufacturer : WATTS WATER TECHNOLOGIES Material : Brass ModelName : VCIMZUL ModelNumber : VCIMZUL NumberOfBoxes : 1 NumberOfItems : 5 PartNumber : CV4X4TWB ProductDescription : 3/4inch 9D-M2 WATTS THREADED BACKFLOW PREVENTER WITH ATMOSPHERIC VENT 0061888 ProductSiteLaunchDate : 2016-01-01T00:00:00.000-08:00 Size : 3/16" Dia SpecificationMet : csa b64.3 SupplierDeclaredDgHzRegulation : unknown UnitCount : 1 UnspscCode : 40141600