24"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 31.75"h] w20h20 Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 7 3/4" x 1"

Actual Filter Size – 31 3/4"w x 35 3/4" x 1"

+ Product Details Outer dimensions: 15

+ Product Details Outer dimensions: – fits a duct opening

24"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 31.75"h] w20h20 Actual Filter Size – 27+ Product Details Size 24"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 31. 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