This EU tube support grid holds plates, strips or individual tubes. The tube support grid are available in a wide range of colors, are alphanumeric marked and have knobs to fix EU tube strips and plates. Once the tube strips or plates are positioned, and after pipetting the required reagents, the Tube support grid is used as a carrier which can be placed completely in the thermal cycler, during pre- and post the cycling process. After cycling the grid with vessels is removed from the cycler.