Steel City 4 In. Old Work Octagon Ceiling Fan Box with Brace

Octagon ceiling fan box. Features a volume of 15.8 cubic inches with a 4-inch diameter x 1-1/2-inch depth. Includes 1/2-inch knockouts. Durable pre-galvanized steel drawn construction, with non-metallic cable clamps (C-5) and 16-inch to 24-inch long old work bar hanger. For use with non-metallic sheathed cable.