14"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 27.75"h] Compatible with Duct 10" + Product Details Size –

+ Product Details Size – 12"w X 8"h is the size for the duct opening measurement only

Actual Filter Size – 21 3/4"w x 15 3/4" x 1"

Built with rust-resistant aluminum and a scratch-resistant powder-coated finish

actual front end outer dimensions are approximately 18 5/8" width X 16 5/8" height

14"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 27.75"h] Compatible with Duct 10" + Product Details Size –+ Product Details Size 14"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 75" Width X 27. 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