Polycarbonate with Polypropylene Screw Closure. Withstand up to 50,000 x g in refrigerated or non-refrigerated centrifuges. NALGENE sealing caps are available (Nalge No. DS3132) for CN3118-2, -3 and -4. Before autoclaving, just set closure on top of the tube without engaging the threads. Must be filled to 80% of the total capacity. Refer to NALGENE Tube and Bottle Selector guide for complete speed, closure and accessory information. WARNING! All centrifuge ware must be filled to at least 80% of total capacity for proper performance unless otherwise noted.
