Straight Union – Conduit to Box, Thread Gender Female to Male, Trade Size 1 1/2 in, Compatible Conduit Type Vertical or Horizontal Rigid Conduit, Compatible Conduit Trade Size 1 1/2 in, Ends – Hazardous Fittings 1 1/2 in FNPT x 1 1/2 in MNPT, Overall Length 3 1/4 in, Overall Height 3 1/4 in, Overall Width 3 1/4 in, Aluminum, Finish Powder Coated, Hazardous Location Rating Class I, Division 1 and 2, Groups A, B, C, D, Class II, Division 1 and 2, Groups E, F, G, Class III, UNY