Straight Union – Conduit to Conduit, Thread Gender Female to Female, Trade Size 1 in, Compatible Conduit Type Vertical or Horizontal Rigid Conduit, Compatible Conduit Trade Size 1 in, Ends – Hazardous Fittings 1 in FNPT x 1 in FNPT, Overall Length 1 3/4 in, Overall Height 1 23/32 in, Overall Width 1 23/32 in, Aluminum, Finish Plain, 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, UNF, For Use With Conduit