8" X 16" or 16" x 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 17.75] 4" Round Duct Pipe + Product Details Size –

+ Product Details Size – Duct end cap is 8" X 8" | 26-gauge galvanized steel end cap

Designed with practicality at its core

Carefully packaged to prevent damage during shipment

and you'll have seamless access to your system's vital components

It features a secure adhesive design for easy installation onto duct surfaces

8" X 16" or 16" x 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 17.75] 4" Round Duct Pipe + Product Details Size –+ Product Details Size 8"w X 16"h or 16" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 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