Aluminum Garage Door Air Vent Grille Register - With Damper Control Lever For Winter & Summer Settings - With Insect Net Prevent Guard [Outer Dimensions: 17.5"w X 12"h] w34h34 designed to optimize your air

designed to optimize your air distribution

+ Product Details Size – 28"w X 32"h is the size for the duct opening measurement only

Actual Filter Size – 13 3/4"w x 29 3/4" x 1"

Actual Filter Size – 21 3/4"w x 29 3/4" x 1"

Aluminum Garage Door Air Vent Grille Register - With Damper Control Lever For Winter & Summer Settings - With Insect Net Prevent Guard [Outer Dimensions: 17.5"w X 12"h] w34h34 designed to optimize your airOuter Dimensions Are 17. 5" Wide x 12" Tall x 2. 75" Deep Will Fit All Garrage Doors Insulated And Non Insulated Garrage Doors [The Hole In The Door SHould Be: 15 x 9 ] Made of High Quality Aluminum That Will Never Rust Contorl Lever To Adjust Louvers According To Season Complete Open For Summer To Release The Heat, Close For Winter To Prevent The Cold With Insect Net That Will Prevent Mousquitos and Insects From Entering To Maximize Ventilation