18"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 27.75"h] 18" Diameter actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 27 5/8" width X 12 5/8" height

This aluminum adjustable louvered garage vent allows air ventilation and circulation in your garage 24 hours a day

+ Product Details Size - 14"w X 36"h X 2"d (for duct opening measurement only)

closest('dt')

+ Product Details Outer dimensions: – fits a duct opening

18"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 19.75"w x 27.75"h] 18" Diameter actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 27 5 8" width X 12 5 8" height This aluminum adjustable louvered garage vent allows air ventilation and circulation in your garage 24 hours a day