6"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 15.75"h] steel Optional Butterfly Damper Available At

Optional Butterfly Damper Available At Asin: B007CNEL1W

actual front end outer dimensions are approximately 24 5/8" width X 30 5/8" height

6"w X 6"h Is The Size For The Duct Opening Measurement Only

Actual Front End Outer Dimensions Are 12" Width X 10" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size – 12" x 24" or 24" x 12" is the size for the duct opening measurement only

6"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 15.75"h] steel Optional Butterfly Damper Available At+ Product Details Size 6"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 7. 75" Width X 15. 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