32"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 13.75"h] ceiling actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 10 5/8" height

If your hole is 14" wide by 20" tall

+ Product Details Size – 4"w X 10"h or 10"w X 4"h is the size for the duct opening measurement only

+ Product Details Size - 6"w X 24"h X 2"d (for duct opening measurement only)

32"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 13.75"h] ceiling actual front end outer dimensions+ Product Details Size 32"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 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