26"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 31.75"h] Copper Coil-Insulated Line Set For 12" Round Duct Opening

For 12" Round Duct Opening - Spiral or Flex

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making it perfect for both residential and commercial installations

Filter Size - 33

5"w X 12"h]

26"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 31.75"h] Copper Coil-Insulated Line Set For 12" Round Duct Opening+ Product Details Size 26"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 75" Width X 31. 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