These are new, out of box PTFE adapters that were originally acquired from a US pharmaceuticals lab.
Description: PTFE body has a GL-14 threaded polypropylene screw cap, adapter fits 19/22 flask.
If you are in need of laboratory supplies or glassware, please see a selection of Pyrex, Chemglass, Buchi and other brands available in the New Life Scientific web store!
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