24"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 25.75"w x 37.75"h] 6" Round Duct Pipe + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 22"w X 34"h X 2"d (for duct opening measurement only)

+ Product Details Size - 24"w X 8"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 27 5/8" width X 27 5/8" height

Actual Filter Size – 17 3/4"w x 31 3/4" x 1"

75"H – fits a 16" X 12" duct opening

24"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh Black [Outer Dimensions 25.75"w x 37.75"h] 6" Round Duct Pipe + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 22"w X 34"h X 2"d (for duct opening measurement only) + Product Details Size 24"w X 8"h X 2"d (for duct opening measurement only)