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] w24h24 + Product Details Size -

+ Product Details Size - 16"w X 36"h X 2"d (for duct opening measurement only)

+ Product Details Size - 14"w X 6"h is the size for the duct opening measurement only

+ Product Details Size – 12"w X 12"h

Actual Filter Size – 19 3/4"w x 9 3/4" x 1"

and then smoothly drop in the grill

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] w24h24 + Product Details Size -+ 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