30"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 15.75"h] Compatible with Duct 8" Actual Filter Size – 33

Actual Filter Size – 33 3/4"w x 13 3/4" x 1"

10" Diameter Is The Size For The Duct Opening Measurement Only

Actual Filter Size – 23 3/4"w x 23 3/4" x 1"

actual front end outer dimensions are approximately 38 5/8" width X 20 5/8" height -

30"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 15.75"h] Compatible with Duct 8" Actual Filter Size – 33+ Product Details Size 30"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 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