4" X 10" or 10" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 11.75] 12" Diameter } /* Added styles for

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order a 14x20 grille

+ Product Details Size & Compatibilty - The 10" to 8" round metal pipe reducer & increaser 30 gauge is compatible with duct 10" to 8"

9% Pure Copper)

4" X 10" or 10" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 11.75] 12" Diameter } /* Added styles for+ 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