22"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 27.75"h] w36h36 Achieve the perfect airflow with

Achieve the perfect airflow with adjustable control by rotating the middle disk

Actual Filter Size – 7 3/4"w x 7 3/4" x 1"

+ Product Details Size - 6"w X 20"h X 2"d (for duct opening measurement only)

Actual Filter Size – 29 3/4"w x 5 3/4" x 1"

actual front end outer dimensions are 19" Width X 11" Height

22"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 27.75"h] w36h36 Achieve the perfect airflow with+ Product Details Size 22"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 23. 75" Width X 27. 75" Height Weather and Pest Proof These louvers are especially designed to prevent water from entering your home, and with a built in back 1 2" mesh they also protect you from annoying rodents like mice, rats, birds, and squirrels High Quality Aluminum The premium durable aluminum will never rust and it will never