Tidoin 21.26 in. Silver Square Aluminum Automatic Gravity Shutter Louver Vent for 18.5 in. Exhaust Fan

This Automatic Gravity Shutter is sold alone, does not include the exhaust fan blade and motor. Automatically open and gravity close. This shutter accompany with an motor and fan blade can help to cool your space and remove excess heat, moisture and dust.

• Product dimension: this 18 in. automatic gravity shutter’s outer dimension measures 21.26 in. L x 21.26 in. W x 2.76 in. D, ideal for home, garages and greenhouses – check the product image for detailed product dimensions
• High-quality aluminum: product made from high-quality aluminum that it’s durable and never corrosion or rust, maintain a neat and smooth surface
• Weather and pest proof: precision manufacturing that the louvers can 100% fully close to prevent water from entering heavy-duty and precision structure enable this shutter to withstand tropical storm conditions including hurricanes and tornados
• Functional: automatically open and gravity close this shutter accompany with an motor and fan blade can help to cool your space and remove excess heat, moisture and dust
• Caution: this automatic gravity shutteris sold alone, does not include the exhaust fan blade and motor