8" X 18" Or 18" X 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 19.75] w20h20 + Product Details Size -

+ Product Details Size - 30"w X 18"h is the size for the duct opening measurement only

scratch-resistant

Universal Fit – Measures 6" wide x 3-1-13/16" high x 3-1/8" deep

Whether replacing an old register or installing a new vent

crafted from high-quality galvanized sheet metal for unparalleled durability and rust prevention

8" X 18" Or 18" X 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 19.75] w20h20 + Product Details Size -+ Product Details Size 8"w X 18"h or 18" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 19. 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