Straight Union - Conduit to Conduit, Thread Gender Female to Female, Trade Size 2 in, Compatible Conduit Type IMC, Threaded RMC, Compatible Conduit Trade Size 2 in, Ends - Hazardous Fittings 2 in FNPT x 2 in FNPT, Overall Length 2 5/8 in, Overall Height 4 in, Overall Width 4 in, Weight 0.58 lb, Aluminum, Finish Plain, Hazardous Location Rating Class I, Division 1 and 2, Groups C, D, Class I, Zones 1 and 2, Groups IIB, IIA, Class II, Division 1 and 2, Groups E, F, G, Class III, Division 1 and 2