PVC Union Pipe Fitting, 3inch Slip Union Coupling Adapter, Schedule 80, EPDM O-ring, Socket, Grey Specification: For use with: water Type: union fitting Connection type: Pipe Connection: Socket Schedule: 80 O-Ring Material: EPDM Max pressure: 150psi Maximum service temperature: 140??60?? Features: Union fitting for connecting and disconnecting two pipes more easily than with couplings Socket openings on both ends for connecting two male pipes PVC for strength and resistance to chemicals and corrosion, and an EPDM seal for resistance to oil, water, and some solvents Excellent for pool &spa, OEM and general purpose applications Package: 1pc PVC union pipe fittings