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] Copper Coil It has an outer surface

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

This thoughtful design ensures optimal air circulation for your HVAC system

All of these grills have dampers

this grille seamlessly drops into the designated place

+How To Measure A Grille Overall Size:

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] Copper Coil It has an outer surface+ 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