Masonry Boxes Accommodate Switch Mounting Or Other Devices In Masonry Walls.
Masonry Boxes are made of corrosion resistant welded galvanized steel for long lasting durability. Rectangular shape fits square cuts in blocks. Includes standard 1/2" and 3/4" concentric knockouts. Device ears formed inside box, preventing mortar from getting in device holes. Allows two or more devices side-by-side. 2-1/2" D boxes used in 4" block walls. 3-1/2" D boxes used in 6 or 8" block walls. UL listed. Available in a variety of sizes and capacities. Package quantities are 1, 10, 20 and 25.
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