These polypropylene tube strips and cap strips are specifically designed for PCR use and are ideal for thermal transfer applications The ultrathin and consistent tube walls ensure that thermal transfer is precisely even along the surface of the tube. The unique cap design guarantees a perfect fit to prevent sample evaporation during thermal cycling. Tubes are made in highly polished injection molds and are free of lubricants, dyes, heavy metals, and fillers. Tubes offer a maximum RCF of 4000g. Tubes and caps are certified by lot number to be RNase, DNase, and pyrogen free. Ordering information: Tube strips and cap strips are ordered separately. For Real Time PCR applications, select the clear tube strips and the Real Time PCR cap strips.