16"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 25.75"h] return filter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 8" OR 8" X 16" duct opening (measured at the opening)

actual front end outer dimensions are approximately 32 5/8" width X 18 5/8" height -

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+ Product Details Size – 32"w X 24"h is the size for the duct opening measurement only

Actual Filter Size – 15 3/4"w x 19 3/4" x 1"

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