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| New one-inch knockout Masonry box Thomas & Betts introduced the Steel City 1" KO Masonry Boxes, the factory-made one-inch knockout Masonry box. At 3½" inches deep and 3¾" long, the 1" KO Masonry Box features a one-inch knockout on each end and two on the bottom, as well as two ½" and ¾" eccentric knockouts. The box is available in single-gang and is non-gangable. The Steel City 1" KO Masonry Box is UL listed, offers a stable, welded steel, single-piece design for heavy-duty applications, and will not deform after installation. write your comments about the article :: © 2006 Construction News :: home page |