10"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 13.75"h] White + Product Details Size -

+ Product Details Size - 22"w X 28"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 32" or 32" x 6" duct opening (measured at the opening)

Actual Filter Size – 35 3/4"w x 7 3/4" x 1"

Filter Size - 23

+ Product Details Size - 10"w X 8"h X 2"d (for duct opening measurement only)

10"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 13.75"h] White + Product Details Size -+ Product Details Size 10"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 13. 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