The yellow shell adaptor is intended for single-use to prevent cross contamination between RT-qPCR runs. It should be discarded along with the strip tubes after the run is complete. Separating individual strips from the yellow shell adaptor post amplification may result in the unintended opening of the caps and potential amplicon contamination events. If additional yellow shell frame adaptors are needed, they can be purchased from BIOplastics (product code AB19805G.)