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4-11/16" Square Plenum Boxes with Air-Tight Conduit K.O.S
4-11/16" Square Plenum Boxes with Air-Tight Conduit K.O.S Material：Galvanized SteelApplication: These 4-11/16”square boxes with conduit knockouts are larger boxes installed when larger-sized conductors are required. These boxes are great for industrial applications. Advantages: Can be used where reduced wall depth imposes limitations. They also have versitile, combination-head screws that securely fasten a cover to an electrical junction box using a slotted, Phillips, or Robertson head screwdriver. Field Names: 11B Box, 11B junction box, 5S box, shallow 11B box, shallow 5S box, shallow e
