10"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 35.75"h] Powder Coated + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 24" x 28" or 28" x 24" is the size for the duct opening measurement only

+ Product Details Size - 28"w X 16"h X 2"d (for duct opening measurement only)

+ Product Details Size - 26"w X 10"h X 2"d (for duct opening measurement only)

Actual Filter Size – 27 3/4"w x 31 3/4" x 1"

+ Product Details Size – 20" x 30" or 30" x 20" is the size for the duct opening measurement only

10"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 11.75"w x 35.75"h] Powder Coated + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 24" x 28" or 28" x 24" is the size for the duct opening measurement only + Product Details Size 28"w X 16"h X 2"d (for duct opening measurement only)