Stoppers, turn – over flange, silicone, Isolab

►Manufactured from chemically inert, autoclavable, best quality natural silicone.
►Guarantees excellent chemical and temperature resistance between -60°C to +170°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, resealable.