Appleton Electric Explosionproof Junction Box GUBB-33

12 INCH L X 12 INCH W X 7.75 INCH D OVERALL SIZE 10.75 INCH L X 10.75 INCH W X 3.94 INCH D INNER SIZE 2 INCH HUB SIZE UL 886/1203, CSA C22.2 APPROVAL LUG MOUNTING CLASS I DIV 1 AND 2 GROUP B C D, CLASS II DIV 1 AND 2 GROUP E F G, CLASS III, NEMA 3/3R/4/7B/7C/7D/9E/9 F/9G ENCLOSURE MALLEABLE IRON BODY MATERIAL MALLEABLE IRON COVER MATERIAL 0.56 INCH (TOP/BOTTOM/SIDE), 0.81 INCH (BACK) WALL THICKNESS ZINC ELECTROPLATED/CHROMA TE/EPOXY POWDER COATED BODY FINISH 9.69 INCH COVER OPENING DIAMETER ZINC ELECTROPLATED/CHROMA TE/EPOXY POWDER COATED COVER FINISH UNILET[R] BRAND CONSTRUCTIONAL FEATURE CORROSION RESISTANT APPLICATION INDOOR/OUTDOOR GUBB MODEL