12"W X 10"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 11.75"H] Powder-Coated + How To Measure A

+ How To Measure A Grille

This grille is ideal for both sidewall and ceiling installations

Width vs Height:

Carefully packaged for protection during shipment

Design – Unrestricted airflow For Your HVAC system - noise free components - no vibrating louvers etc

12"W X 10"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 11.75"H] Powder-Coated + How To Measure A+ Product Details Size 12"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 11. 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