26"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 19.75"h] Compatible with Duct 6" accordion dt { margin-bottom: 10px

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Actual Filter Size – 21 3/4"w x 13 3/4" x 1"

Actual Front End Outer Dimensions Are 7

+ Product Details Size – 12"w X 10"h is the size for the duct opening measurement only

These grilles and registers give you an extra measure of quality that you can point out to your family members and house guests

26"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 19.75"h] Compatible with Duct 6" accordion dt { margin-bottom: 10px+ Product Details Size 26"w X 18"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 75" Width X 19. 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