8"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 33.75"h] 12" Round Duct Pipe Actual Filter Size – 15 WD G128 Product Details Size 25 Floor Grille Toe Space

Actual Filter Size – 15 3/4"w x 17 3/4" x 1"

Outer Dimensions Are 17

actual front end outer dimensions are approximately 28 5/8" width X 22 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 6" Or 6" x 34" duct opening (measured at the opening)

+ Product Spec Sheet Aluminum Return Filter Grille Spec Sheet

8"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 9.75"w x 33.75"h] 12" Round Duct Pipe Actual Filter Size – 15 WD G128 Product Details Size 25 Floor Grille Toe Space Actual Filter Size – 15 3 4"w x 17 3 4" x 1" Outer Dimensions Are 17