28"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 7.75"h] Outdoor Vent Covers actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

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

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

Actual Filter Size – 23 3/4"w x 27 3/4" x 1"

+ Product Details Size - 12"w X 28"h X 2"d (for duct opening measurement only)

+ Product Details Size - 34"w X 34"h is the size for the duct opening measurement only

28"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 29.75"w x 7.75"h] Outdoor Vent Covers actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 32 5 8" width X 8 5 8" height actual front end outer dimensions are approximately 38 5 8" width X 8 5 8" height