20" X 20" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 21.75 X 21.75] return grille Optional Butterfly Damper Available At

Optional Butterfly Damper Available At Asin: B007CNEL1W

+ Product Details Size – 16"w X 12"h is the size for the duct opening measurement only

Made of high-quality PE material with inner black liner

Crafted from solid stamped steel

Filter Size - 19

20" X 20" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 21.75 X 21.75] return grille Optional Butterfly Damper Available At+ Product Details Size 20"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" width X 21. 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 shrink