18"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 23.75"h] Powder-Coated + Product Details Size –

+ Product Details Size – 25"w X 28"h is the size for the duct opening measurement only

ensuring consistent and efficient air distribution throughout your space

Horizontal performance assures confident use of cooling temperature differential of 30 degrees Fahrenheit and greater

The unique sponge gasket ensures an airtight seal

Quality Packaging – carefully shrink wrapped with cardboard backing to prevent damage in shipment

18"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 23.75"h] Powder-Coated + Product Details Size –+ Product Details Size 18"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 19. 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