32"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 9.75"h] w28h28 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 12" OR 12" x 26" duct opening (measured at the opening)

Actual Filter Size – 7 3/4"w x 9 3/4" x 1"

actual front end outer dimensions are approximately 12 5/8" width X 20 5/8" height

Just run your finger along the edge of the top plate and you’ll find a smooth finished surface

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32"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 9.75"h] w28h28 + Product Details Perfect Fit+ Product Details Size 32"w X 8"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 75" Width X 9. 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 wear