Upgrade your ventilation with this Silver 20" Wall Mounted Shutter Exhaust Fan-built for power, durability, and versatility! Delivering 3368 CFM at 1200 RPM, it efficiently circulates indoor/outdoor air, freshening spaces like attics, garages, greenhouses, warehouses, and barns while regulating temperature. Crafted with corrosion-resistant aluminum louvers and blades, plus a sturdy steel frame, it resists rust for long-lasting performance. Automatic gravity shutters open during operation and close tightly when off, blocking mosquitoes, dust, and debris. Arriving fully assembled, simply mount the frame to the wall and connect the power cord-no complex setup needed. Operating at 120V/60HZ with 125W power, it's a reliable solution for home and commercial ventilation, blending strong airflow, safety, and ease of use.