Description
4-inch diameter side nail mount fan and fixture box. Fiberglass construction with a flexible polyurethane flange to form an energy efficient vapor seal. Does not distort with high temperatures, shatter resistant with low temperatures. Can help stop warm and cool air leaks. 35-pound fan rated, 50-pound fixture rated. 1/2-inch offset. UL (Underwriter’s Laboratories) listed. 4 In. W. x 2-3/8 In. D.
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