10"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 27.75"h] Width_20in Superior Airflow Control: Built-in damper LO246 Product Details Size 32 Compatible with Duct 4"

Superior Airflow Control: Built-in damper lets you control how much air enters your room

+ Product Details Size – 36"w X 12"h is the size for the duct opening measurement only

adds a touch of sophistication to any room

+ Product Details Size – 10"w X 10"h is the size for the duct opening measurement only

10"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 11.75"w x 27.75"h] Width_20in Superior Airflow Control: Built in damper LO246 Product Details Size 32 Compatible with Duct 4" Superior Airflow Control: Built in damper lets you control how much air enters your room + Product Details Size – 36"w X 12"h is the size for the duct opening measurement only