26"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 27.75"W X 13.75"H] Material_Aluminum +How To Measure A Grille

+How To Measure A Grille Overall Size:

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Tough reinforced metallized polyester jacket - tear and puncture resistant

Complies with industry standards of USA: ASTM D-882

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26"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 27.75"W X 13.75"H] Material_Aluminum +How To Measure A Grille+ Product Details Size 26"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27. 75" width X 13. 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