8" X 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 9.75] Grey + Product Details Size -

+ Product Details Size - 6"w X 18"h X 2"d (for duct opening measurement only)

For 6" Round Duct Opening - Spiral or Flex

Operating Temperature – From -40°F To +248°F [-40°C To +120°C]

SAVE MONEY ON YOUR BILL - PRESERVE YOUR HVAC UNIT - Highest Rate Of Air Flow Efficiency - Easy Unrestricted Air Flow For Your HVAC System - 1/2" x 1/2" x 1/2" Cube Core - Offers 90% Free Area

+ Product Details Size – 25"w X 20"h is the size for the duct opening measurement only

8" X 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 9.75] Grey + Product Details Size -+ Product Details Size 8"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 9. 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 shrink wrapped