We started with a 15Š—_ RhinoFLEX Sewer Hose and pre-attached specially engineered fittings to make it even more convenient for you. At the RV end of the hose, there is a super-tough bayonet fitting with 4 prongs for a more secure fit. At the dump-station end, weŠ—Čve added an easily detachable 4-in-1 adapter for fitting to 3Š—_ slip or 3Š—_, 3-1/2Š—_ and 4Š—_ threaded pipe. ItŠ—Čs a ready-to-use kit made with the toughest hose you can buy. With pre-attached fittings.