8"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 35.75"h] Grilles 875" height Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

875" height

actual front end outer dimensions are approximately 32 5/8" width X 38 5/8" height

Can be hooked up with our "Butterfly Dampers" for precise airflow control

+ Product Details Size - 28"w X 30"h is the size for the duct opening measurement only

+ Product Details Size – 26"w X 12"h is the size for the duct opening measurement only

8"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 9.75"w x 35.75"h] Grilles 875" height Compatible With Duct 7in Applications This sheet metal DDAG A 1212 875" height actual front end outer dimensions are approximately 32 5 8" width X 38 5 8" height