Explosionproof Junction Box, Hub Size 4 Inch, Overall Size 23 Inch L x 17 Inch W x 9.13 Inch D, Inner Size 18.25 Inch L x 12.25 Inch W x 5.75 Inch D, Cover Type Bolt-On, Hinged, Enclosure Class I Div 1 and 2 Group B C D, Class I Zone 1 and 2 Group IIA IIB, Class II Div 1 and 2 Group E F G, Class III, NEMA 4/9EFG, IP66, Body Material Sand Cast Copper-Free Aluminum, Body Finish Shot Blast, Cover Material Sand Cast Copper-Free Aluminum, Cover Finish Shot Blast, Mounting Horizontal/Vertical with Slotted Feet, Approval UL 886, CSA C22.2, Application Hazardous Location, Used On Terminal, Splicing wire, Pull box, Bus box, Includes Stainless Steel Cover Bolt, Neoprene O-Ring, Galvanized Steel Mounting Pan