4" X 30" Or 30" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: [5.75 X 31.75] Compatible with Duct 5" + Product Details Size -

+ Product Details Size - 14"w X 14"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size & Compatibility – The size of the side round ceiling box is 12" X 12" X 8" and it is compatible with duct 8"

and crafted from powder-coated stainless steel for exceptional durability

Installation – Installs directly on round & oval spiral duct - no frames

4" X 30" Or 30" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: [5.75 X 31.75] Compatible with Duct 5" + Product Details Size -+ Product Details Size 4"w X 30"h or 30" x 4" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 75" width X 31. 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