Attributes . Explosionproof, dust-ignitionproof; Malleable iron bodies have high tensile strength and ductility, provides great resistance to corrosion, impact and shock; Accurately tapped, tapered hub threads for tight, rigid joints and ground continuity; Furnished with cover, four threaded universal 3/4 IN hubs, four 3/4 IN to 1/2 IN reducers and three 1/2 IN close-up plugs; General purpose wiring; Serve as mounting outlets for lighting fixtures when used with hub cover; Wide, accurately ground explosion-proof mating surfaces; Smooth, rounded integral bushing in each hub type box protects conductor insulation; Complies with a wide range of classified area requirements; Corrosion-resistant ideal indoors or out; For pulling of wires; Connect conduit lengths and change direction of conduit runs; Provide access for maintenance . Names