26"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 35.75"h] Color_Aluminum + Product Details Size –

+ Product Details Size – 24" x 26" or 26" x 24" is the size for the duct opening measurement only

Actual Filter Size – 25 3/4"w x 21 3/4" x 1"

+ Product Details Outer dimensions: 31

+ Product Description Upgrade your HVAC system with our 8" Round Air Vent Supply Grille

Actual Filter Size – 15 3/4"w x 27 3/4" x 1"

26"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 35.75"h] Color_Aluminum + Product Details Size –+ Product Details Size 26"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 75" Width X 35. 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