10"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 21.75"h] d + Product Details Size –

+ Product Details Size – 32"w X 12"h is the size for the duct opening measurement only

allow you to customize airflow direction with ease

Actual Filter Size – 31 3/4"w x 27 3/4" x 1"

+ Product Details Size - 32"w X 16"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 52 5/8" height

10"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 21.75"h] d + Product Details Size –+ Product Details Size 10"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 21. 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