34"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 13.75"h] 14" Round Duct Pipe + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 32" OR 32" x 36" duct opening (measured at the opening)

Actual Filter Size – 19 3/4"w x 21 3/4" x 1"

+ Product Details Size – 14"w X 26"h is the size for the duct opening measurement only

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+ How To Measure A Grille Before You Buy Overall Size:

34"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 13.75"h] 14" Round Duct Pipe + Product Details Perfect Fit+ Product Details Size 34"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 35. 75" Width X 13. 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