24"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 11.75"h] Material_Aluminum + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 36" OR 36" X 14" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 8" OR 8" x 22" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 24" OR 24" X 16" duct opening (measured at the opening)

Actual Filter Size – 35 3/4"w x 23 3/4" x 1"

+ Product Description Maximize HVAC efficiency with our aluminum eggcrate return air filter grille

24"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 11.75"h] Material_Aluminum + Product Details Perfect Fit+ Product Details Size 24"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 11. 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