DescriptionThe Dayton DA-C794 20'' electric exhaust fan with 2600 CFM has many uses. Keep your attic properly ventilated for a cool, more energy efficient home. Add an optional thermostat and make it even more worry free. Install a Dayton 20'' electric exhaust fan to a garage to make it more of a livable space instead of a large hot storage closet. Turn a musty humid basement into a cool place to chill with a new electric exhaust fan. The Dayton DA-C794 20'' exhaust fan has many uses, invent your own!