Upgrade your space with the 20 in. Shutter Exhaust Fan, designed to provide superior ventilation and cooling for any environment. Whether it's a home attic, workshop, welding room, factory, warehouse, barn, or greenhouse, this fan is perfect for removing heat, moisture, dust, and unpleasant odors. Constructed with high-grade aluminum shutters and blades, it resists corrosion and withstands high temperatures, ensuring long-lasting performance. The automatic gravity shutters open and close with the fan's operation, offering efficient ventilation and protection when not in use. Installation is a breeze with the pre-installed 1.65m power cord — no wiring or assembly required. Simply mount the fan, plug it in, and enjoy instant ventilation. With a powerful 3500 CFM airflow, 120 volts, 60Hz, and 1309 rotations per minute, this industrial-grade fan meets all your cooling and ventilation needs. Experience the ease and efficiency of the 20 in. Shutter Exhaust Fan today. Color: Silver.