Polycarbonate centrifuge bottles are transparent, with excellent mechanical strength. Narrow-mouth design. For leakproof service at maximum rated speeds or when spinning hazardous materials, NALGENE sealing cap assemblies (Cat. No. DS3131) are required for 250-mL size (CN3122-1); NALGENE sealing caps (Cat. No. DS3132) for 1000-mL sizes (CN3122-3 and CN3122-4). When using the 250-mL bottle (CN3122-1) in the Sorvall GSA rotor, use the NALGENE centrifuge bottle adapter (Cat. No. DS3125-0250). CN3122-4 can be used in IEC centrifuges. Before autoclaving, set closure on top of the bottle without engaging the threads. For proper performance must be filled to 80% of the total capacity.
