InVent Series 110 CFM Single Speed Bath Fan & Light. This energy-efficient fan operates at a quiet 1.3 sones and features a versatile housing platform for easy installation in both construction and retrofit applications. Foldable mounting ears allow for simple room-side replacement, while a 4" duct connector mounts from inside the housing. Damper technology enhances air tightness scores. The 10"x9-1/4"x5-3/4" housing is Energy Star qualified, and the fan comes with a 1-year limited warranty.