Air King AS70 70 CFM 40 Sones Exhaust Fan with 3 Inch Duct

The Advantage Exhaust Fan provides 70 CFM of ventilation at 4.0 Sones. It features a low profile grill that almost disappears into the ceiling. The slim 3-3/4" housing with a 3" plastic duct outlet allows the fan to be mounted into either a ceiling or a wall while the plastic damper protects against back drafts. It installs easily using the double thick keyhole mounting tabs.