These transparent centrifuge bottles are manufactured from polycarbonate and have polypropylene closures (sealing caps also feature a silicone gasket). Bottle and caps are autoclavable.
Replace screw caps with sealing cap assemblies 21009-901 for leakproof performance at high speeds or when containing hazardous materials is a consideration.
Note: When autoclaving, place cap on container top without engaging threads. For proper performance, fill bottles to at least 80% of the total capacity.