HIGH-CAPACITY FAN: Ventilation fan operates on a single, impact-resistant centrifugal blower wheel with 147 CFM, 1.4 Sones, and 120V for a powerful and effective performance HEAVY-DUTY: Housing is constructed of 20-gauge galvanized steel and features an 6" round metal duct connector to provide long-lasting use CUSTOMIZATION: Fan ducts horizontally, vertically, or in-line with a separate adapter for your convenience EFFECTIVE: Motors are permanently lubricated to provide continuous and quiet operation GREAT FOR BATHROOM: UL Listed for use over tubs and showers with a GFCI circuit so you can capture the steam before it spreads throughout the room by placing your fan exactly where you need it the most