24"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 23.75"h] Compatible with Duct 8" + Product Details Size -

+ Product Details Size - 8"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 8"w X 20"h is the size for the duct opening measurement only

Actual Filter Size – 25 3/4"w x 11 3/4" x 1"

Actual Filter Size – 23 3/4"w x 31 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 36" duct opening (measured at the opening)

24"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 23.75"h] Compatible with Duct 8" + Product Details Size -+ Product Details Size 24"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 23. 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