2020/11/2 · aijiren Tech 8-strip of 0.2ml thin wall CPR tubes and caps green The aijiren Tech 0.2 mL Strip Tubes are designed for PCR and qPCR applications, and are compatible with 0.2 mL thermal cycler blocks.While these tubes are sold without caps, aijiren Tech offers multiple cap options, including an ultra clear cap that's ideal for use in qPCR assays.