32"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 37.75"h] w18h18 Actual Filter Size – 21

Actual Filter Size – 21 3/4"w x 17 3/4" x 1"

Actual Front End Outer Dimensions Are 14" Width X 10" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

For 14" Round Duct Opening - Spiral or Flex

background-color: #000

actual front end outer dimensions are approximately 22 5/8" width X 30 5/8" height

32"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 37.75"h] w18h18 Actual Filter Size – 21+ Product Details Size 32"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 75" Width X 37. 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