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] White Our innovative adjustable design changes

Our innovative adjustable design changes the game

+ Product Description Enhance your ventilation system with our high-quality grilles and registers

+ Product Details Size - 12"w X 4"h is the size for the duct opening measurement only

4" X 12" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

3 * Insulation density is 30kgs/CBM = 0

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] White Our innovative adjustable design changes+ 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