... /2" Deep 1/2" KO Galvanized Steel Square Junction BoxMaterial: Galvanized SteelThickness:1.2mmDeep: 1 ... Octagon Junction Box available 1.These 4” square boxes with conduit knockouts are installed in ... , standard 1900 box, square conduit box, 4” square box, 4” square junction box, 4” square outlet box, standard 1900 ... work "cut in" applications or new construction. Waterproof 4"Square Junction Box CB896