BF-A3 Metal Duct Adaptor Replacement Part for Bath Fans, 3-Inch Duct

The BF-A3 Metal Duct Adaptor Replacement Part is designed for use with USI bathroom exhaust fans that connect to 3-inch ducts. Use this part to replace the worn or broken duct adaptor on your bath fan. This adaptor can be used with models BF-503, BF-503BA, BF-703 and BF-703BA. Bathroom exhaust fans by combine high function with practical design to keep air moving and effectively pull out moisture. Return your bathroom to a normal humidity level and prevent mold, mildew and odors from taking over your living space with a bath fan.