Creates a high flow blast of water into your RV’s sewer discharge pipe, cleaning the black or gray water tanks. The 45° angle allows the water to flow up the center of the pipes, directly to the tank. The gate valve collects water allowing for a more thorough rinse of your black and gray water tanks. Attaches directly to the RV’s sewer drainage pipe. Includes a 4-prong bayonet fitting that easily attaches to the RV’s sewer outlet, and a swivel lug fitting to connect to your sewer hose.