It are designed for high-speed centrifugation applications, offering exceptional chemical resistance and durability. With a capacity of 28 mL, these tubes are made from polypropylene copolymer (PPCO), providing greater chemical compatibility compared to polycarbonate tubes. They are repeatedly autoclavable, ensuring extended usability in laboratory settings. Each tube comes with a polypropylene linerless closure, ensuring leakproof protection under normal conditions up to 10,000 x g. For enhanced performance, when equipped with a Nalgene sealing cap (sold separately), these tubes can withstand centrifugation forces up to 50,000 x g.