24"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Brown [Outer Dimensions 25.75"w x 37.75"h] Insulated Line Set Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 14" duct openings

3 * Insulation density is 30kgs/CBM = 0

actual front end outer dimensions are approximately 14 5/8" width X 10 5/8" height

please note that the total outer dimensions of the grille measure 8" in diameter

+ Product Details Size - 12"w X 30"h is the size for the duct opening measurement only

24"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Brown [Outer Dimensions 25.75"w x 37.75"h] Insulated Line Set Ideal for Walls & Ceilings:+ Product Details Size 24"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 37. 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