Camco's RhinoFLEX 20-foot RV Sewer Hose Kit with RhinoFLEX hose and swivel fittings is a Ready-to-Use kit made with the toughest hose you can buy. The two hoses are made of sturdy polyolefin and are reinforced with steel wire. They are collapsible, and you only have to extend as much hose as you need. This kit features bayonet fittings with four prongs for a more secure fit. The fittings are permanently attached to the hose for a no leak experience. Included is a transparent elbow with an easily detachable 4-in-1 adapter for connecting to 3-inch slip or 3-inch, 3-1/2-inch and 4-inch NPT threaded sewer connection. The kit also includes a storage cap for each sewer hose end. The hose assemblies compress for storage, and once the 4-in-1 adapter is removed you can store the hose in standard 4-inch square bumpers.