Straight Union - Conduit to Box Thread Gender Female to Male Trade Size 4 in Compatible Conduit Type Vertical or Horizontal Rigid Conduit Compatible Conduit Trade Size 4 in Ends - Hazardous Fittings 4 in FNPT x 4 in MNPT Overall Length 5 1/8 in Overall Height 5 1/8 in Overall Width 5 1/8 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 For Use With Conduit