30"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 27.75"h] flat stamped steel Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 26" or 26" x 10" duct opening (measured at the opening)

actual front end outer dimensions are approximately 26 5/8" width X 12 5/8" height

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

30"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 27.75"h] flat stamped steel Actual Filter Size – 29+ Product Details Size 30"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 75" Width X 27. 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