Universal Security Instruments 3.5-Sone 50-CFM White Bathroom Fan

Combines high functionality with practical design to keep air moving and effectively pulls out moisture. Equipped with a 50-CFM, 3.5-sones motor that is permanently lubricated so that it will not get louder over time. Covers up to 60 square feet of living space and includes 3-inch duct adapter with built-in damper. Keyhole slots on the blower bracket simplifies installation so you can have a fully-functioning bath fan in no time. Manufacturer part number BF-503.