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] w36h36 3 * Insulation density is

3 * Insulation density is 30kgs/CBM = 0

both individually adjustable

+ Product Details Size – 14" x 14" is the size for the duct opening measurement only

+ Product Details Size - 16"w X 20"h X 2"d (for duct opening measurement only)

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] w36h36 3 * Insulation density is+ 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