Chili-HotTM PCR tubes from Excel Scientific offer ultra-thin walls yield more even heat transfer and faster cycle times. Available in three different styles: 0.2 mL individual tubes with attached domed caps, 0.2 mL strips of eight tubes and 0.5 mL individual tubes with flat tops. Attached domed caps on the 0.2 mL tubes minimize lid condensation and sample loss. Flat tops are featured on the 0.5 mL tubes to facilitate labeling. Unique ring-lock-seal cap design on all styles ensures closure during heating and eliminates evaporation. Chemically inert virgin polypropylene construction assures sample integrity and yields superior clarity for sample viewing. Available in a wide selection of colors for sample coding. Compatible with all commonly used thermal cyclers. Certified RNase/DNase-free.