Makes fixture replacement easier & solves the problem of concealing unsightly vent pipes. Used as a secondary vent - does not eliminate the need for a main vent stack.
Camco RV 3" Permanent Plumbing Adapter Sewer Fitting allows hookup of standard RV bayonet connection to the 3" threaded plumbing pipe. This fitting is non-restrictive and allows free flow of water. Connects the sewer hose to the RV.