Spare Rubber/PTFE insert, for phenolic caps to fit Pyrex narrow mouth, screw cap reagent bottles, diameter 30mm. Made from ethylene propylene faced with PTFE for chemical resistance.
Spare Rubber/PTFE insert, for phenolic caps to fit Pyrex narrow mouth, screw cap reagent bottles, diameter 30mm. Made from ethylene propylene faced with PTFE for chemical resistance.