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Tethered Screw Cap Microcentrifuge Tubes, Self-Standing

Skirted tubes have a conical interior base and white tethered caps. Sterile, 100/pack.
$26.65
  • Sterilized and pre-assembled with caps open
  • Saf-T-Seal™ tubes withstand centrifugation up to 20,000 × g
  • Suitable for boiling, vapor-phase liquid nitrogen, or -80°C storage

Saf-T-Seal™ tubes with tethered caps have an inert TPE O-ring molded directly into the white polypropylene tethered cap. The O-ring cannot fall out, and an optical quality control process ensures a perfect seal. The tubes are made from high-clarity, medical-grade polypropylene. 2.0 mL tubes have graduations and a writing surface; 0.5 mL and 1.5 mL tubes have no markings. Certified free of detectable RNase, DNase, DNA, PCR inhibitors and pyrogens. Sterile and pre-assembled with caps open.