Pre-attached fittings make this 15-ft. hose quick to hook up and easy to use. The bayonet fitting at the RV end has four prongs for a secure fit. At the dump-station end, the easily detachable, 4-in-1 adapter lets you hook up to a 3 slip or a 3 , 3-1/2 or 4 threaded pipe.Pre-attached swivel fittings include a locking ring, so fittings can be moved to a new RhinoFLEX hose. Includes bayonet cap and elbow cap. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Exterior.