20.6 in. x 20.8 in. shutter/exhaust fan with automatic shutters can help replace your AC unit by cooling your garage， attic， greenhouse shop or chicken coop

Installation: can easily be added to a window opening or opening in the wall along with a thermostat to optimize cooling

Cooling and ventilation: this industrial grade shutter fan can solve all of your cooling and ventilation needs

Rust proof aluminum shutters: this shutter fan is made with corrosion resistant aluminum shutters and blades

Provides longevity to the fan and will prevent any rust from forming

Item dimensions: 14.96 in. L x 14.96 in. W x 7.88 in. H

Power source type: corded electric

Bare leads for custom application and safety grille and large fan blade

UL Listed， mounting type: wall mount

Fan specification: 115-Volts， 125-Watt， 0.52A， 1190 RPM， 3368 CFM