4" X 16" or 16" x 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 17.75] Adjustable Return Seamless Installation: Designed to fit

Seamless Installation: Designed to fit seamlessly into a 24 by 24 inch opening

Say goodbye to low-quality fiberglass filters below MERV 4

75"H – fits a 16" X 16" duct opening

The SK-5 Japanese Alloy Steel V Blade guarantees strong

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 14" or 14" x 6" duct opening (measured at the opening)

4" X 16" or 16" x 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 17.75] Adjustable Return Seamless Installation: Designed to fit+ Product Details Size 4"w X 16"h or 16" x 4" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 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