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] Aluminum Efficient Airflow Design: The slots

Efficient Airflow Design: The slots are meticulously angled to diversify airflow in two directions

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actual front end outer dimensions are approximately 10 5/8" width X 18 5/8" height

ensuring it fits most standard thermostat models

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

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] Aluminum Efficient Airflow Design: The slots+ 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