16" X 24" or 24" X 16" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 17.75 X 25.75] Compatible With Duct 4in + Product Details Size –

+ Product Details Size – 28"w X 24"h is the size for the duct opening measurement only

fasten the edges to studs with the provided screws

+ Product Details Size – 14"w X 25"h is the size for the duct opening measurement only

Length of Electric Cord: 1

16" X 24" or 24" X 16" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 17.75 X 25.75] Compatible With Duct 4in + Product Details Size –+ Product Details Size 16"w X 24"h or 24" X 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" width X 25. 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