14" X 16" or 16" x 14" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 15.75 X 17.75] Compatible with Duct 4" while its modern design complements

while its modern design complements any space

actual front end outer dimensions are 21" Width X 21" Height

It can be easily installed on drywall

+ Product Details Size - 36"w X 36"h is the size for the duct opening measurement only

Replace monthly for best results

14" X 16" or 16" x 14" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 15.75 X 17.75] Compatible with Duct 4" while its modern design complements+ Product Details Size 14"w X 16"h or 16" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" width X 17. 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