Check the listing for details. Valterra 3" Dump Valve RV Drain Sewer Waste Valve Assembly 3" Hub 3" Spigot T50. Condition: New. Listed at 16.95 USD. Adds or replaces a waste valve on your RV's waste system. Made from a strong and durable black plastic construction. Comes with the end cap for the drain outlet. The connection point for your drain hose accepts your standard 3" diameter drain hose with a bayonet style fitting & 4 attachment prongs. Easily accessible t-grip handle used to open and close the gate. The other side that connects to your RV's plumbing system. This is going to accept 3" standard plumbing pipe. Internal diameter dimension is going to be about 3 1/2". All Handles are threaded for easy replacementStainless steel shaftValves are easy to open and closeValve handles are plasticValterra valve systems interchange with most all common brands of items