12"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 21.75"H] Fixed Blades with Damper These Supply Diffusers with integral

These Supply Diffusers with integral round necks are recommended for heating

actual front end outer dimensions are 25" Width X 19" Height

Just run your finger along the edge of the top plate and you’ll find a smooth finished surface

actual front end outer dimensions are approximately 14 5/8" width X 36 5/8" height

Tough reinforced metallized polyester jacket - tear and puncture resistant

12"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 21.75"H] Fixed Blades with Damper These Supply Diffusers with integral+ Product Details Size 12"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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