30"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 13.75"H] w18h18 actual front end outer dimensions

actual front end outer dimensions are approximately 8

controlled by a switch

Do not measure the overall size of the register itself

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

positioning supply and return grills accordingly

30"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 13.75"H] w18h18 actual front end outer dimensions+ Product Details Size 30"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 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