Autoclavable centrifuge bottles made of polypropylene copolymer with polypropylene screw closure. Translucent bottles have excellent chemical resistance. Strong and rigid. Sealing cap available for 1000-ml capacity bottles. When using the 250-ml bottle in the Sorvall GSA rotor, use the NALGENE centrifuge bottle adapter. Order No. 23 87 31202 is designed for use with IEC rotors. Before autoclaving, set closure on top of the bottle without engaging the threads. For proper performance these bottles must be filled to at least 80% of the total capacity, except for Order No. 23 87 31203, which must NOT be filled to more than 75% of total capacity.

N.B.: An adapter is essential for Sorvall GSA rotors (see Order No. 23 87 31250).