This is the Gaggenau Vario 200 Series VL041707 4 Inch Wide Downdraft Ventilation. The sale is for one ventilation only with the knob\dial. This can be used with other Gaggenau Vario 200 series countertop drop in appliances like the cooktops. Please note that this is just the ventilation housing which has a brand new filter. You will receive this ventilation housing with filter along with the materials that you see on the last picture(#10). If you have any questions or simply wish to see more pictures or video of this item please don’t hesitate to reach out.