Aoibox 20 in. Square Aluminum Automatic Gravity Shutter Louver Static Roof Vent

Aoibox 20 in. Square Aluminum Automatic Gravity Shutter Louver Static Roof Vent in Silver SNMX5286

This 20 in. automatic gravity shutter’s outer dimension measures 23.43 in. x 23.43 in. x 2.76 in. (length x width x depth), ideal for homes, garages, and greenhouses. Precision manufacturing that the louvers can be 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. Color: Silver.