Ready-to-Use Kit: Complete kit has all the features that RVers with tandem holding tanks are looking for Includes: (2) 10-foot super heavy-duty 18mil HTS vinyl sewer hoses with pre-attached swivel bayonet and lug fittings, (1) transparent elbow with 4-in-1 adapter, (1) translucent swivel wye fitting, and (4) storage caps 4-in-1 Adapter: Is compatible with a 3-inch slip or 3-inch, 3-1/2-inch and 4-inch NPT threaded sewer connection Translucent Swivel Wye Fitting: Allows two sewer hoses with lug fittings to be connected to the same dump station - perfect for motorhomes with two separate holding tank valves; The fittings swivel 360 degrees for easy connecting Simple to Store: The hose and fittings compress for storage; Once the 4-in-1 adapter is removed, the sewer hose assemblies fit in 4-inch square bumpers.