The Grainger 16X827 is a 16-inch diameter, 827 CFM, 3-speed, direct drive exhaust fan. It features a thermally protected motor and is constructed of galvanized steel with a gray powder coat finish. This exhaust fan is designed for wall mounting and has a sound rating of 7.4 sones. It operates on 120V power and weighs approximately 35 lbs. The 16X827 exhaust fan from Grainger provides high airflow for industrial and commercial ventilation needs.