10" X 20" or 20" X 10" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 11.75 X 21.75] Sheet Metal/Adjustable Elbow as the fitting has an

as the fitting has an opening of 1/2"

HVAC Premium has been providing superior in quality service for many many years

with actual outer dimensions of 26

actual front end outer dimensions are approximately 22 5/8" width X 38 5/8" height

all the way around the square portion which can be used for attachment or folded over

10" X 20" or 20" X 10" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 11.75 X 21.75] Sheet Metal/Adjustable Elbow as the fitting has an+ Product Details Size 10"w X 20"h or 20" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 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