Killark EXB-664 N34 - The Killark EXB Series Junction Boxes are certified for Class I, II, and III hazardous locations and are made from corrosion-resistant, copper-free cast aluminum. They feature fewer cover bolts, a nitrile "O" ring gasket, ductile mounting lugs, and optional left-side hinges for easy installation and maintenance. The enclosures can be drilled and tapped for conduit openings, have pre-drilled bosses for mounting pans, and include recessed flange notches for easier cover removal. Suitable for hazardous industrial environments like petroleum refineries and chemical plants, these boxes can house various control devices and are available with global certifications and custom modifications.