20"/24" Shutter Exhaust Fan, Aluminum Wall Mounted Shutter Exhaust Fan, 3500 CFM, 1500 RPM High Speed Low Noise Automatic Shutter Attic Fan, Ventilation and Cooling for Greenhouses, Garages, Sheds

Superior Airflow: Shutter Exhaust Fans are known for their power and efficiency, running at 120 volts, 60 Hz, 1,500 rotations per minute, and cooling and ventilating 3,500 cubic feet per minute. Industrial-grade shutter fans are designed to meet all your cooling and ventilation needs. Corrosion-Resistant and Durable Design: Made with high-grade aluminum shutters and blades, Shutter Exhaust Fans withstand moisture and heat for extended life and prevent corrosive rust for long-term reliable operation. Automatic Shutter Design: Wall-mounted exhaust fans are equipped with automatic shutters that automatically open and close as the fan runs, providing convenient operation and efficient ventilation. Instant Installation: Enjoy plug-and-play experience with ease! Our wall-mounted exhaust fans are pre-assembled, no additional assembly is required, just install them into the window or wall opening, and you can immediately improve ventilation. Tip: Remember to remove the protective film before use. Powerful Multi-Purpose Function: Shutter Exhaust Fan is designed to remove heat, moisture, dust and odors in residential, commercial, industrial and agricultural spaces. Suitable for a variety of places, such as home attics, workshops, welding rooms, factories, warehouses, barns and greenhouses, etc., providing a full range of ventilation solutions.