PC, sealing cap PP screw closure with silicone gasket. Excellent mechanical strength. Molded-in graduations. For use in refrigerated and non-refrigerated centrifuges up to 27500 x g. Must be used with NALGENE adapter for conical-bottom centrifuge bottles (Cat. No. DS3126-0175). For proper performance these bottles must be filled to at least 80 % of the total capacity. Autoclavable, transparent, leakproof. PC, sealing cap PP screw closure with silicone gasket. Excellent mechanical strength. Molded-in graduations. For use in refrigerated and non-refrigerated centrifuges up to 27500 x g. Must be used with NALGENE adapter for conical-bottom centrifuge bottles (Cat. No. DS3126-0175). For proper performance these bottles must be filled to at least 80 % of the total capacity. Autoclavable, transparent, leakproof.