32"W X 8"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 33.75"W X 9.75"H] Copper Coil if your hole is 20"

if your hole is 20" wide by 14" tall

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 10" duct opening (measured at the opening)

+ Product Details Size – 24" x 24" is the size for the duct opening measurement only

+ How To Measure A Round Vent Overall Size:

32"W X 8"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 33.75"W X 9.75"H] Copper Coil if your hole is 20"+ Product Details Size 32"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 33. 75" width X 9. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed.