34"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 35.75"W X 21.75"H] w25h25 the actual front end outer

the actual front end outer dimensions are 7" in diameter

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order a 20x14 grille

you can attain the diameter of the vent

+ Product Details Size - 20"w X 8"h is the size for the duct opening measurement only

34"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 35.75"W X 21.75"H] w25h25 the actual front end outer+ Product Details Size 34"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 35. 75" width X 21. 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