Insulation Black Foam Tape Adhesive Seal for Pipes, Doors, Windows - Universal Weather/Air Sealer, Waterproof - 2" x 30' Roll (1/8" Thick) Color_R-4.2 Yellow actual front end outer dimensions

actual front end outer dimensions are approximately 11" width X 11" height -

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 32" OR 32" x 18" duct opening (measured at the opening)

+ Product Details Size – 10" X 4" is the opening (vent hole) dimension - actual size is approx

+ Product Details Size & Compatibility – The size of galvanized sheet metal straight floor boot is 12" X 6" X 4"

actual front end outer dimensions are approximately 26 5/8" width X 24 5/8" height

Insulation Black Foam Tape Adhesive Seal for Pipes, Doors, Windows - Universal Weather/Air Sealer, Waterproof - 2" x 30' Roll (1/8" Thick) Color_R-4.2 Yellow actual front end outer dimensionsInsulation Black Foam Tape Adhesive Seal for Pipes, Doors, Windows Universal Weather Air Sealer, Waterproof 2" x 30' Roll (1 8" Thick)