Easi Plumb Hose Union Connection Nozzle | EP34HUC Replacement component Includes swivel nut & O ring Easy to fit PVC material White Color Easi Plumb Hose Union Connection Nozzle | EP34HUC A union also connects two pipes, but is quite different than a coupling, as it allows future disconnection of the pipes for maintenance. In contrast to a coupling requiring solvent welding, soldering, or rotation (for threaded couplings), a union allows easy connection and disconnection, multiple times if needed. Features The Easi Plumb Hose Union Connection is a replacement component for the double inlet appliance trap. This easy to fit connection includes a swivel nut and an O ring. This connector is made from durable PVC.