34"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 29.75"h] 6" Round Duct Pipe the second number represents the

the second number represents the height

+ Product Details Size – 12"w X 12"h

UPC – 810107141946

Actual Filter Size – 9 3/4"w x 27 3/4" x 1"

actual front end outer dimensions are approximately 32 5/8" width X 34 5/8" height

34"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 29.75"h] 6" Round Duct Pipe the second number represents the+ Product Details Size 34"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 35. 75" Width X 29. 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