12"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 35.75"h] 10in diameter + Product Details Size -

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

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

actual front end outer dimensions are approximately 7

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

Installation – Easy to Install

12"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 35.75"h] 10in diameter + Product Details Size -+ Product Details Size 12"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 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