Dixon 400DD-45AL Aluminum Cam and Groove Hose Fitting, 45 Degree Elbow, 4" Socket 45 degree elbow with two openings for connecting two hoses or pipes with cam and groove fittings Female cam coupler at either end for connecting to male groove adapters Aluminum for resisting corrosion and tarnishing Cam lock levers for locking the fitting's male groove adapter into female cam couplers Nitrile butadiene rubber seal rated for petroleum service, ethanol to E100, and biodiesel to B20