26"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 23.75"h] sidewall Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 7 3/4" x 1"

+ Product Details Size – 16"w X 8"h is the size for the duct opening measurement only

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Crafted with top-notch quality aluminum

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 6" or 6" x 8" duct opening (measured at the opening)

26"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 23.75"h] sidewall Actual Filter Size – 27+ Product Details Size 26"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 75" Width X 23. 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