Blank Plugs - Haz Loc, Thread Gender Male to Male, Trade Size 1 in, Compatible Conduit Trade Size 1 in, Ends - Hazardous Fittings 1 in MNPT, Overall Length 5/8 in, Overall Height 2 in, Overall Width 2 in, Weight 0.07 lb, Aluminum, Finish Plain, Hazardous Location Rating Class I, Groups A, B, C, D, Class I, Zone 1, Groups IIC, IIB, IA, Class II, Groups E, F, G, Class III, CUP, For Use With Hub, Taped Hole, Conduit Fitting Type Plug, Connection Orientation Straight, Fitting Type Plug