The RhinoFLEX 45-Degree Clear Swivel RV Sewer Fitting has an angled design, allowing you to easily access and empty your RV's black and grey water tanks. The 45-degree elbow is clear so you can see when your holding tank is empty. This ready-to-use fitting simply connects your sewer hose to your RV's waste valve fitting. It features swivel lug and bayonet fittings for a fastened, odor-tight connection. The four-prong bayonet fitting firmly attaches to any lug fitting, and the lug end is compatible with any bayonet fitting. This product is constructed of durable resin.