Explosionproof Cast Junction Box, Hub Size 3/4 Inch, Overall Size 9-13/16 Inch L x 9-13/16 Inch W x 4-15/32 Inch D, Inner Size 8 Inch L x 8 Inch W x 4 Inch D, Wall Thickness 1/4 Inch, Cover Type Screw-On, Enclosure Class II Div 1 and 2 Group E F G, Class III, NEMA 4/9EFG, Body Material Cast Iron, Body Finish Hot Dip Galvanized, Cover Material Cast Iron, Cover Finish Hot Dip Galvanized, Mounting Surface with Lug, Approval UL, Application Hazardous Location, Constructional Feature Dust tight, Watertight, Weight 24 Lb