30"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 11.75"h] Filter Grille Actual Filter Size – 23

Actual Filter Size – 23 3/4"w x 25 3/4" x 1"

The grille features counter-sunk screw holes that prevent paint from peeling during installation

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 34" OR 34" x 24" duct opening (measured at the opening)

Actual Filter Size – 7 3/4"w x 17 3/4" x 1"

30"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 11.75"h] Filter Grille Actual Filter Size – 23+ Product Details Size 30"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 75" Width X 11. 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