Camco Rhino Flex Waste Hose Kit 3"x 15'At one end is a super tough bayonet fitting with 4 prongs for a more secure fit. At the dump station end, is an easily detachable 4 in 1 adapter for fitting to 3" slip or 3 1 2 and 4 threaded pipe Translucent elbow allows you to see when your tank is empty Components can be disconnected for storage and cleaning This is the toughest hose with pre attached engineered fittings for convenience at dumping time. With the Camco Rhino Flex Waste Hose Kit