Broan NuTone 8210 Ceiling Mount Utility Fan with Vertical Discharge, 210CFM 7-Inch fan installs in the ceiling and ventilates directly through the roof, using 7-Inch round vertical ducting for applications when you cannot vent horizontally Paintable engineered resin grille installs easily and can be painted to match wall or ceiling colors to blend in with the room Motor assembly offers fast, easy "twist-lock" feature to make for a quick installation so you can move on to the next project Specially designed fan blade stays in balance and will not distort, providing reliable ventilation for many years Adjustable mounting brackets span from 14 to 24-Inch O.C. joist spacing to fit most wall or ceiling construction and makes installation easier