The Sorenson™ Dolphin Microcentrifuge Tubes from Sorenson BioScience are polypropylene tubes, specifically designed for pelletizing samples. They have a positive seal design which allows for repeated cap closures, and will not pop open under pressure when boiling.
Specification
Temp. range: -80-121 °C. L × diam.: 1.525 in. × 0.362 in. Cap W: 0.500 in Capacity: 2.0 mL.
Features
RCF rating of 15,000 × g. Fits all standard rotors (for 2.0 mL tubes). RNase/DNase Free. PCR Inhibitor Free. Human DNA Free. Pyrogen Free.