18"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 27.75"h] White 75" Height - SEE BELOW

75" Height - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE

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

actual front end outer dimensions are approximately 12 5/8" width X 22 5/8" height

Design – Heavy gauge steel

18"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 27.75"h] White 75" Height - SEE BELOW+ Product Details Size 18"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 19. 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