19 in, Overall Width 2 1/16 in, Weight 0.Al Union, Thread Gender Male to Female, Overall Length 2 9/16 in, Outside Diameter 2.25 lb, Aluminum, Finish Natural, Hazardous Location Rating Class I, Divisions 1 and 2, Groups A, B, C, D, Class II, Divisions 1 and 2, Groups E, F, G, Class III, Divisions 1 and 2, UNF, Conduit Fitting Type Union, Fitting Type Union.