24"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 17.75"h] Color_Black 12"w X 6"h Is The

12"w X 6"h Is The Size For The Duct Opening Measurement Only

Actual Filter Size – 33 3/4"w x 7 3/4" x 1"

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Design – Full Control Vertical/Horizontal Air flow Direction

Experience enhanced indoor comfort with our 6" Butterfly Damper

24"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 17.75"h] Color_Black 12"w X 6"h Is The+ Product Details Size 24"w X 16"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 17. 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