34"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 7.75"h] Aluminum Bar + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 36"w X 30"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 34 5/8" width X 16 5/8" height

Actual Filter Size – 15 3/4"w x 15 3/4" x 1"

+ Product Details Size - 20"w X 20"h is the size for the duct opening measurement only

High Quality – Extra Heavy Duty to withstand constant walk on situations

34"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 35.75"w x 7.75"h] Aluminum Bar + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 36"w X 30"h X 2"d (for duct opening measurement only) actual front end outer dimensions are approximately 34 5 8" width X 16 5 8" height