36"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 15.75"h] w28h28 Actual Filter Size – 31

Actual Filter Size – 31 3/4"w x 13 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 32" OR 32" x 22" duct opening (measured at the opening)

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

+ Product Details Size - 14"w X 18"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 22 5/8" width X 52 5/8" height

36"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 15.75"h] w28h28 Actual Filter Size – 31+ Product Details Size 36"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 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