20" X 26" Or 26" X 20" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 21.75 X 27.75] w18h18 75"H – fits a 24"

75"H – fits a 24" X 10" duct opening

75" Width X 37

+ Product Details Size – 22"w X 18"h is the size for the duct opening measurement only

+ Product Details Size – 8"w X 30"h or 30" x 8" is the size for the duct opening measurement only

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20" X 26" Or 26" X 20" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 21.75 X 27.75] w18h18 75"H – fits a 24"+ Product Details Size 20"w X 26"h or 26" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" width X 27. 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