8"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 15.75"h] Color_Black + Product Details Size -

+ Product Details Size - 22"w X 4"h is the size for the duct opening measurement only

+ Product Details Size - 16"w X 14"h X 2"d (for duct opening measurement only)

+ Product Details Size - 20"w X 16"h X 2"d (for duct opening measurement only)

Actual Filter Size – 23 3/4"w x 33 3/4" x 1"

The premium durable material guarantees that they will never rust or wear through

8"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 15.75"h] Color_Black + Product Details Size -+ Product Details Size 8"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 15. 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 wear