16"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 17.75"W X 27.75"H] Powder-Coated + Product Details Size -

+ Product Details Size - The listed 5" diameter refers specifically to the size of the duct opening

Perfect for sidewall or ceiling installation

these grilles ensure easy

Think of the diameter as a straight line from one end to the other

Carefully Shrink Wrapped With Cardboard Backing To Prevent Damage In Shipment

16"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 17.75"W X 27.75"H] Powder-Coated + Product Details Size -+ Product Details Size 16"w X 26"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" width X 27. 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