8"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 15.75"h] Color_Anodized Aluminum Actual Filter Size – 11

Actual Filter Size – 11 3/4"w x 13 3/4" x 1"

Filter Size - 35

these louvers provide exceptional protection against rain and water

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 28" OR 28" x 30" duct opening (measured at the opening)

+ Product Details Size – 20" x 32" or 32" x 20" is the size for the duct opening measurement only

8"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 15.75"h] Color_Anodized Aluminum Actual Filter Size – 11+ Product Details Size 8"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 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