24"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 13.75"h] w34h34 Actual Filter Size – 21

Actual Filter Size – 21 3/4"w x 5 3/4" x 1"

How to Measure Your Vent Hole Before Ordering a Grille

+ Product Details Size - 8"w X 26"h is the size for the duct opening measurement only

Exceptional Craftsmanship: Hand-inspected for quality

+ Product Details Size - 6"w X 6"h is the size for the duct opening measurement only

24"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 13.75"h] w34h34 Actual Filter Size – 21+ Product Details Size 24"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 13. 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