36"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 29.75"h] white + Product Details Size – Compatible with Duct 4" Product Details Size 32 LO246

+ Product Details Size – 14"w X 8"h is the size for the duct opening measurement only

75"H – fits a 14" X 12" duct opening

Actual Filter Size – 27 3/4"w x 21 3/4" x 1"

+ Product Details Size - 18"w X 22"h X 2"d (for duct opening measurement only)

Its polished pre-finish gloss varnish not only adds to its appeal but also ensures easy installation

36"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 37.75"w x 29.75"h] white + Product Details Size – Compatible with Duct 4" Product Details Size 32 LO246 + Product Details Size – 14"w X 8"h is the size for the duct opening measurement only 75"H – fits a 14" X 12" duct opening