Dixon 200-D-MI Unplated Iron Type D Cam and Groove Hose Fitting, 2" Socket x 2" NPT Female Straight body with two openings for connecting two hoses or pipes with cam and groove fittings or threads One female cam coupler end for connecting to male groove adapters and one NPT female threaded end for connecting to an NPT male threaded connection (Type D) Unplated iron for strength, malleability, and ductility 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