Outer Dimensions Are 17.5" Wide x 12" Tall x 2.75" Deep - Will Fit All Garage Doors - Insulated And Non Insulated Garage Doors [The Hole In The Door Should Be: 15 ¼ x 9 ¾]
Made of High Quality Aluminum That Will Never Rust
Control Lever To Adjust Louvers According To Season - Completely Open For Summer To Release The Heat, Closed For Winter To Prevent The Cold
With Insect Net That Will Prevent Mousquitos and Insects From Entering
To Maximize Ventilation Results, Install 2 Vents. One Towards The Top Of The Door, And One Towards The Bottom Of The Door. This Will Create A Cycle Of In And Out Air Flow. As The Hot Air Will Flow Up & Out, And The Cooler Air From Outside WIll Flow In From The Bottom