LLG-Stoppers, silicone, with turn-over flange

These stoppers guarantee perfect sealing even with poorly finished rims on glass or plastic bottles. The top of the stopper has a septum which can be punctured by a hypodermic needle. Very secure fit prevents accidental opening of the flask.
Diam. mmPKCat. No.
7.10106.272 079
12.70106.272 081

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LLG-Stoppers, silicone, with turn-over flange