A new twist on a staple in the life science laboratory.

• Uniform wall thickness
• Store samples at temperatures as low as –86 °C
• Color-coded caps for easy sample identification
• Sterilized by gamma irradiation
• RNAse-, DNAse-, pyrogen-, and cytotoxin-free

Available in Red, Orange, Yellow, Green, and Blue, these tubes are packaged in either styrofoam racks or in bulk bags. Racked tubes are available for purchase by individual rack, or by the case. Bulk bags of tubes are available for purchase by the case.

Perfect for any lab conducting multiple studies, day of the week studies, or any experiments requiring multiple sample types or solutions. All five cap varieties are flat, brightly colored, and frosted to make them easy to write on. The tubes have uniform wall thickness for clarity and centrifugal strength.