SierraSquad 20 Inch 3500 CFM Aluminum Automatic Shutter Exhaust Fan, Wall Mounted High Speed Louvered Vent Fan for Garage Attic Workshop Greenhouse

SierraSquad 20 Inch 3500 CFM Aluminum Automatic Shutter Exhaust Fan, Wall Mounted High Speed Louvered Vent Fan for Garage Attic Workshop Greenhouse

• [Compact Powerful & Low Noise]: 20 Inch shutter fan provides 3500 CFM strong airflow, 150W power and 1500 RPM high speed. Low noise design fits small to medium spaces perfectly with standard 20-inch mounting size.
• [Automatic Self-Closing Shutter]: Built-in automatic louver opens and closes along with fan operation. Blocks cold wind, dust and rain effectively, protects the motor and extends service life greatly.
• [Heavy Duty Aluminum Construction]: High-grade aluminum blades are rustproof, corrosion-resistant and heat-resistant. Sturdy structure withstands humidity and harsh environment for long-term reliable use.
• [Installation Guide]: Our wall-mounted exhaust fan fits easily into window or wall cutouts to boost ventilation and cooling efficiency during setup.Speed regulators and power plugs are not pre-equipped on this standard unit, you’ll need to buy a standalone plug and complete wiring separately for operation.
• [Energy Efficient Multi-Purpose Use]: Energy-saving design optimizes air circulation, lowers indoor temperature and improves air quality. Ideal for attic, garage, workshop, welding room, factory, warehouse, barn and greenhouse.