Screw Cap Microcentrifuge Tubes, Self-Standing, Amber
- Amber caps seal with just 1.25 turns
- Saf-T-Seal™ tubes withstand centrifugation up to 20,000 × g
- Suitable for boiling, vapor-phase liquid nitrogen, or -80°C storage
Deep external threads protect against sample loss and seal failure. An interior U channel in the cap keeps the ethylene propylene rubber (EPR) O-ring in place as the cap is tightened. 2.0 mL tubes have graduations and a writing surface; 0.5 mL and 1.5 mL tubes have no markings. Non-sterile tubes are certified free of detectable RNase, DNase, and DNA. Autoclavable polypropylene.