Spring loaded aluminum backdraft damper prevents drafts from entering back into the room, 8" diameter housing for maximum air flow, HVI2100 Certified: 180 CFM @
The Air King Through the Wall Exhaust Fan Series features an all metal housing that can be installed into walls 4" to 9" thick and vents directly to the outside. A perfect fit for exhausting garages.Highlights:Spring loaded aluminum back draft damper prevents drafts from entering back into the room8" round diameter housing for maximum air flow Direct to outdoors exhaust design eliminates the need for ductingSpecifications:HVI Certified CFM : @ .10 SP: 180 HVI Certified Sones : @ .10 SP: 6.5 Sound Level : High Duct Size : 8" round Collar/Damper : Metal Mounting : Wall Mounting Effective Ventilation : Bathrooms up to 160 sq. ft., Other rooms up to 225 sq. ft.