4" X 10" or 10" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 11.75] Round Stack Boot } /* TITLE TEXT */

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 22" duct opening (measured at the opening)

+ Product Details Size - 10"w X 16"h is the size for the duct opening measurement only

+ Product Details Size – 14" round duct sheet metal elbow - 30 gauge galvanized - crimped end connection - adjustable from 5° - 90°

Actual Front End Outer Dimensions Are 12" Diameter

4" X 10" or 10" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 11.75] Round Stack Boot } /* TITLE TEXT */+ Product Details Size 4"w X 10"h or 10" x 4" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 75" width X 11. 75" height. High Quality High grade steel construction meant for high foot traffic areas. Installation Location Floor. Design Easy drop in installation. Powder Coat Finish Smooth, shiny, scratch resistant, with no sharp edges. Looks like it was just waxed. Quality Packaging Carefully