Check the listing for details. 10 inch Shutter Exhaust Fan Wall Mounted Attic Vent Fan Variable Speed Con. Condition: New. Listed at 58.81 USD. 10 inch Shutter Exhaust Fan, Wall Mounted Attic Vent Fan with Variable Speed Controller, 900 CFM, AC Motor, Heavy-duty Steel, Low Noise for Shed, Garage, Greenhouse Ventilation Cooling, BlackElectrostatic CoatingSpiral Fan BladesWeather-Resistant BuildRobust HousingFlexible MountingBroad CompatibilityAirflow: 900 CFM,Noise Level: ≤50 dB(A),Air Speed: 7.4 m/s,Item Model Number: AMX-FAGAC10,Item Dimensions: 12.80 x 12.80 x 7.09 in / 325 x 325 x 180 mm,Louver Opening Angle: ≥50-Degree,Net Weight: 8.04 lbs / 3.65 kg ,Power: 45W,RPM: 1650 RPM,Main Material: Q235B Carbon Steel,Rated Voltage: AC 120V 60Hz Rain Guard: Shutters open when powered for ventilation and deodorizing, then close when off to block rain and small things, reliable protection for an atti.