Ceiling or wall fan features slim, steel housing. Only 7-1/4 In. x 7-1/2 In. x 3-5/8 In. fits easily between studs or joists. Matte-white grille 9-1/2 In. x 9 In. Damper/duct connector fits 3 In. round duct. Rated 70 CFM (cubic feet per minute), 6.0 sones. UL (Underwriter’s Laboratories) listed.