8"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 35.75"h] 2-Way Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 29 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 16" OR 16" x 22" duct opening (measured at the opening)

+ Product Details Size – 25"w X 14"h is the size for the duct opening measurement only

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8"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 35.75"h] 2-Way Actual Filter Size – 29+ Product Details Size 8"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 35. 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