10 In. Silver 820 CFM Aluminum High-Speed Shutter Exhaust Fan

This 10 in. shutter/exhaust fan with automatic Shutters can help replace your ac unit by cooling your garage, attic, greenhouse shop or chicken coop. Can easily be added to a window opening or opening in the wall along with a thermostat to optimize cooling. This shutter fan is made with corrosion resistant aluminium shutters and blades. This provides longevity to the fan and will prevent any rust from forming.