Camco RhinoFLEX Locking Ring - Tightly Secures Fittings onto RhinoFLEX or RhinoEXTREME Sewer Hoses (39803) Secures fittings to RhinoFLEX or RhinoEXTREME sewer hoses Works with new or original RhinoFLEX or RhinoEXTREME sewer hoses Works with elbow, bayonet, lug or coupler fittings Allows you to move fitting to a new RhinoFLEX or RhinoEXTREME hoses Pack of 2