20″ Wall Mounted Shutter Exhaust Fan, Automatic Shutter, with Thermostat and …
POWERFUL AIR VENTILATOR – 3368 CFM, 115V,, 1/5 Horse Power, 980 RPM, Coverage up to 5000 square feet. Industrial ventilation fan with shutter. This fan features aluminum blades, OSHA compliant wire guards, and automatic shutters that open and close in tandem with the operation of the fan.