16" X 30" or 30" x 16" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 17.75 X 31.75] 12in diameter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 10" OR 10" x 28" duct opening (measured at the opening)

durable white powder coat finish for an attractive look & high durability corrosion protection – 15mm medium-density fibreboard with felt cover and rubber sealing between the door and frame for tight security

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 10" or 10" x 14" duct opening (measured at the opening)

Plain Ends – Gives you the freedom to cut and flare at your own project needs

+ Product Details Size – 8"w X 32"h is the size for the duct opening measurement only

16" X 30" or 30" x 16" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 17.75 X 31.75] 12in diameter + Product Details Perfect Fit+ Product Details Size 16"w X 30"h or 30" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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