For round bottom borosilicate glass tubes, choose polypropylene caps (black colour). The 617000 model incorporates a polypropylene gasket. All incorporate an internal sealing ring.
Pharmaceutical quality.
Both models of caps are fully autoclavable.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.