10" X 16" or 16" X 10" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 11.75 X 17.75] 5" Round Duct Pipe The first number in a

The first number in a grille size

75"H – fits a 24" X 10" duct opening

1/4” - 6518 PSI

it’s best to choose a filter that prioritizes excellent airflow without sacrificing its filtering strength

10" X 16" or 16" X 10" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 11.75 X 17.75] 5" Round Duct Pipe The first number in a+ Product Details Size 10"w X 16"h or 16" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 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