STOPPERS - silicone - turn-over flange

Manufactured from chemically inert, autoclavable, best quality natural silicone. Guarantees excellent chemical and temperature resistance between -60°C to ힽ°C. They provide perfect tight sealing even with poorly finished rims preventing accidental openings. Offers optional sealing both from inside or outside of the tube wall. For sampling the upper septum can be easily punctured. Flexible body material reseales.

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