12" X 24" or 24" x 12" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 13.75 X 25.75] 5" Round Duct Pipe + Product Details Size –

+ Product Details Size – 30" x 34" or 34" x 30" is the size for the duct opening measurement only

+ Product Details Size & Compatibility – The size of sheet metal pipe is 10" round x 10' long

+ Product Description Introducing our 4" x 16" or 16" x 4" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

but you will appreciate the benefits over the period of time

+ Product Details Size - 14"w X 36"h X 2"d (for duct opening measurement only)

12" X 24" or 24" x 12" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 13.75 X 25.75] 5" Round Duct Pipe + Product Details Size –+ Product Details Size 12"w X 24"h or 24" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 25. 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