8"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 9.75"h] 12in diameter Actual Filter Size – 7

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

actual front end outer dimensions are approximately 22 5/8" width X 14 5/8" height -

With HVAC Premium you get an extra measure of quality that will be visible to your family members and house guests

These are built heavy duty for installation into brick and cement walls

+ Product Details Size - 12"w X 16"h is the size for the duct opening measurement only

8"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 9.75"h] 12in diameter Actual Filter Size – 7+ Product Details Size 8"w X 8"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 9. 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