HVAC Premium 20"W x 14"H Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 21.75"W x 15.75"H]

HVAC Premium 20"W x 14"H Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 21.75"W x 15.75"H]

• SIZE – 20w X 14h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 21.75" Width X 15.75 Height - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE.
• High Quality Aluminum – The premium durable Aluminum will Never Rust and it will never wear through leaving the material with an elegant, beautiful, and smooth surface, adds a luxurious touch to any home.
• Rigid Built For External Use – The sturdy and rigid design features noise free components that eliminates vibration and excess noise to the Louvers. These are built Heavy Duty for installation into brick and cement walls.