OnSale Broan Model 504 10-Inch Vertical Discharge Utility Fan, 350 CFM, 6.5 Sones

Broan 504 10" Vertical Discharge Ventilation Fan 350 CFM 6.5 Sones Installs Easily Between Ceiling Joists Fits 10" Round Duct - Use Model 472 Transition/Damper (Available Separately) for 8" Round Duct 350 CFM 6.5 Sones Installs easily between ceiling joists Fits 10-Inch round duct - use Model 472 transition/damper available separately for 8-Inch round duct Built in damper minimizes backdrafts Elim