Description: Durable Material: The coupling adapter is made of UPVC material, which is durable and corrosion-resistant. Compared with metal, UPVC will not rust and is suitable for long-term use. Anti-leakage: The overall design of the pipe wall is thickened, which is more resistant to cracking and compression, and has a longer service life. The built-in EPDM O-ring has high elasticity and wear resistance, is resistant to water and steam, and has good sealing. UPVC Union Fittings: Smooth internal design provides reliable and leak-proof connection. Union fittings can be easily disassembled without destroying the pipe connection, facilitating future pipe cleaning and maintenance. Its various sizes can meet your different life needs. Wide Application: UPVC union fittings are widely used to connect various pipes for indoor and outdoor cold water pressure distribution systems, including swimming pools, irrigation, underground sprinkler systems, aquariums, water parks, etc. Specification:Color: WhiteMaterial: UPVCLength: 43mm / 1.69 inchInner diameter: 21.3mm / 0.84 inchOuter diameter: 26.5mm / 1.04 inchPackage Contents: 4 Pcs x UPVC Coupling Pipe Fitting