Duraflex Sanitation Products offers sewer hose kits, sewer hose support systems and sewer drain fittings. The new and improved RV sewer hose kits include drip caps and clear elbow. Duraflex drain hoses are rugged, and remain flexible in all weather conditions. They are easy to install, and come in a variety of lengths. All drain hoses have a 3” inside diameter and are easy to compress for storage. All Duraflex adapters, caps and fittings interchange with all industry standard fittings. Slip sockets and spigots have flanges that attach to drain valves. Bayonet end attaches 3” bayonet fittings to drain valves. Made of durable, UV-stabilized abs.