500mL screw-cap polypropylene tubes are manufactured of polypropylene for temperature and chemical resistance. These tubes are intended for large volume centrifugation and are widely used in cell harvesting/purification and drug discovery applications. BaaySCI's 500mL centrifuge tubes can withstand up to 6,000xg maximum RCF*. They are supplied in sterile, RNase, DNase, and pyrogen-free packs of 5 tubes, 40 tubes per case.