36"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 21.75"h] w8h8 8-1/8"H x 4-5/8" W x

8-1/8"H x 4-5/8" W x 3-5/8"D

+ Product Details Size - 22"w X 32"h is the size for the duct opening measurement only

+ Product Details Size – 20"w X 6"h is the size for the duct opening measurement only

heat pump systems

36"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 21.75"h] w8h8 8-1/8"H x 4-5/8" W x+ Product Details Size 36"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 21. 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