12" X 16" or 16" X 12" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 13.75 X 17.75] Aluminum Working Accordion

Working Accordion

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+ Product Details Size - 28"w X 30"h is the size for the duct opening measurement only

designed to transition ducts from larger to smaller sizes

+ Product Details Size - 14"w X 36"h is the size for the duct opening measurement only

12" X 16" or 16" X 12" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 13.75 X 17.75] Aluminum Working Accordion+ Product Details Size 12"w X 16"h or 16" X 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 17. 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