16"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 25.75"h] return filter + Product Details Size –

+ Product Details Size – 14"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 32"w X 24"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 32 5/8" width X 18 5/8" height -

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Actual Filter Size – 27 3/4"w x 35 3/4" x 1"

16"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 25.75"h] return filter + Product Details Size –+ Product Details Size 16"w X 24"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 17. 75" Width X 25. 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