26"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 27.75"W X 15.75"H] Sheet Metal / Round Duct Actual Filter Size – 21

Actual Filter Size – 21 3/4"w x 25 3/4" x 1"

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Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 8" duct openings

+ Product Details Size & Compatibility – The 6" galvanized steel metal stick on take-off is compatible with duct 6"

26"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 27.75"W X 15.75"H] Sheet Metal / Round Duct Actual Filter Size – 21+ Product Details Size 26"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27. 75" width X 15. 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