RV Gate Valve with 3-Inch Lug and Cap and 3-Inch Slip Fitting is a replacement part for adding or replacing a gate valve connection to your RV's black/gray water sewer tanks. It is compatible with 3-inch RV sewer pipes and the standard lug fitting will connect to existing sewer hoses with bayonet fittings. Includes 3-inch gate valve with gaskets, hub with lug ends, 3-inch slip hub, cap for lug fitting, sewer fitting gasket, lanyard and hardware. The gate valve is constructed of durable ABS material and the cap is constructed of resilient polypropylene. Easy to install, it connects to your RV's existing sewer pipes.