2" Non-Drainable Outdoor Louver Gable Vent (Wide Frame) - Customizable Oval to Round 90-Degree Boot + Product Details Size –

+ Product Details Size – 12" round duct opening-

If your opening is 14" tall by 20" wide

Actual Filter Size – 23 3/4"w x 13 3/4" x 1"

6"w X 6"h Is The Size For The Duct Opening Measurement Only

+ Product Description Enhance your HVAC system's efficiency and your home's aesthetics with our premium aluminum air vent diffuser

2" Non-Drainable Outdoor Louver Gable Vent (Wide Frame) - Customizable Oval to Round 90-Degree Boot + Product Details Size –Our 2" Aluminum Louver Vent Exterior Air Grille for Walls, Gables & Crawlspaces is Weather Resistant with a Wide Flange Frame. It has blades that prevent water penetration and maximize free area. Features Wide flange for additional surface coverage. Heavy duty, extruded aluminum wide flange frame. Fixed, non drainable blades on 2" spacing. J blade design minimizes water ingress while maximizing free area. Nominal 43% free area, based on 48" x 48"