20"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 21.75"w x 27.75"h] Black + Product Description Enhance your Compatible with Duct 4" Product Details Size 32 LO246

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

High Standard

Actual Front End Outer Dimensions Are 3

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 24" OR 24" x 26" duct opening (measured at the opening)

+ Product Details Size – 20"w X 16"h is the size for the duct opening measurement only

20"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 21.75"w x 27.75"h] Black + Product Description Enhance your Compatible with Duct 4" Product Details Size 32 LO246 + Product Description Enhance your HVAC system's efficiency and your home's aesthetics with our premium aluminum air vent diffuser High Standard