36"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 19.75"h] Copper Coil-Insulated Line Set R Value Rating of Insulation

R Value Rating of Insulation - R3

+ Product Details Size - 24"w X 26"h is the size for the duct opening measurement only

Total outer size of this grille is

+ Product Details Size – 32"w X 24"h is the size for the duct opening measurement only

Scratch-Resistant Finish - The powder-coated surface offers a smooth

36"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 19.75"h] Copper Coil-Insulated Line Set R Value Rating of Insulation+ Product Details Size 36"w X 18"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 19. 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