Check the listing for details. 3pcs 1/2" Socket UPVC Pipe Fitting Straight Joint Union Connector, Grey. Condition: New. Listed at 15.53 USD. Union pipe fittings are great for connecting two unthreaded plumbing pipes in different outside diameters requiring high tensile and impact strength. Widely used in building construction, bathrooms, kitchens, sinks, laboratories, etc.Specification:Color: GreyMaterial: UPVC (Unplasticized Polyvinyl Chloride)Shape: StraightHeight: 45.5mm / 1.79 inchInner Diameter: 20mm / 0.79 inchOuter Diameter: 30mm / 1.18 inchMax Diameter: 52.5mm / 2.07 inchPackage Content: 3 x Union FittingsAdvantage:UPVC rotatable connectors with EPDM sealing o-rings feature smooth surface, odorless, neutral, lightweight, and watertight, do not corrode or crack easily and last for a long time even with zero maintenance.Instruction:The socket openings are bonded by UPVC special glue (NOT included here).