Nalgene* Polysulfone Oak Ridge Centrifuge Tubes with Sealing Cap

Polysulfone with polypropylene screw closure. Strong and tough like polycarbonate and much more acid- and base-resistant. Can be used up to 50,000 x g in refrigerated and non-refrigerated centrifuges must be filled to 80% of the total capacity. With sealing cap closure option. Before autoclaving, just set closure on top of the tube without engaging the threads.