16'' Exhaust Fan: Dimensions: 18.9 x 18.9 inch,Airflow: 2000 CFM,FCC Listed,Speed: 1450 rpm. Our high-airflow exhaust fan can eliminate heat, humidity, unpleasant odor, and dust from rooms, buildings, and small enclosed work areas. Get ready to relax and in clean air in all your rooms.High Performance: 120V/60Hz, 115 W. The wall exhaust fan has a premium motor that maximizes airflow while reducing noise and power consumption. And the fully enclosed motor has thermal protection and permanent lubrication for security and easy maintenance.Rust-proof Material: The shutter exhaust fan has a rugged all-metal structure and features a galvanized steel frame, aluminum alloy fan, and shutter, which is highly resistant to weather, liquid, and dust.No Assembly: Get ready to fly through the installation process! Our wall mount exhaust fan comes fully assembled and ready to install right out of the box. No more worrying about wiring! Includes 4 bolts.