16 in. Square Aluminum Automatic Gravity Shutter Louver Standard Static Roof Vent in Silver

This 16 in. automatic gravity shutter's outer dimension measures 19.29 in. x 19.29 in. x 2.76 in. (length x width x depth), ideal for homes, garages, and greenhouses. Precision manufacturing so 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.