Electrical Box, Square, 2 Gangs, Galvanized Zinc, 1-1/2 in D, 4 in W, 4 in L, 21 cu in Capacity

4 in. Square Box, Welded, 1-1/2 in. Deep with Ten 1/2 in. KO and Six TKO’s, Raised Ground•Designed to enclose electrical wiring, switches, receptacles or lighting fixtures. •Constructed from 1/16 in. pre-galvanized steel. 8-32 cover mounting screws assembled.•TKO knockout design provides installation flexibilty•Combination screw heads allow quick installation•Welded construction•Ten 1/2 in. knockouts and six TKO knockouts•UL Listed•21.0 cu. in. capacity•Raised ground•Acceptable in 2-hour fire rated walls