14" X 16" or 16" x 14" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 15.75 X 17.75] Galvanized Steel + Product Details Size -

+ Product Details Size - 24"w X 10"h is the size for the duct opening measurement only

OPTMIZED RIB PATTERN: Generous ribbing underneath the pad spreads the load evenly and ensures pad strength and stability on soil and gravel terrain

+ Product Details Size & Compatibility – The 5" galvanized steel metal stick on take-off is compatible with duct 5"

5 IN A PACK - 4 Inch Diameter Pipe – 25 Foot Length When Connected – 30 Gauge Thick & Made of Thick & Durable Galvanized Sheet Metal - Used For HVAC System Duct Work In Any Building or Home

+ Product Details Size & Compatibility – The size of the wall angle register boot is 12" X 4" X 7" and it is compatible with duct 7"

14" X 16" or 16" x 14" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 15.75 X 17.75] Galvanized Steel + Product Details Size -+ Product Details Size 14"w X 16"h or 16" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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