18"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 25.75"h] Return Grille and a touch of elegance

and a touch of elegance in one superior product

Built with rust-resistant aluminum and a scratch-resistant powder-coated finish

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

With our extensive selection of Grilles

Actual Filter Size – 25 3/4"w x 19 3/4" x 1"

18"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 25.75"h] Return Grille and a touch of elegance+ Product Details Size 18"w X 24"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 19. 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