| Self-sealing tubes "Opti-seal" in polyallomer PA, round bottom. Easy to use. After insertion of the stopper by simple finger pressure, the tube seals itself during the centrifugal process under the effects of both the centrifugal force and hydrostatic pressure.The wide neck of the "Optiseal", suitable for standard 25ml pipettes, facilitates filling. With a rack for eight tubes, collection of fractions is simplified and is performed either from the side or from the bottom of the tubes. The tubes are cleverly packed in seven packs of eight, ready for immediate use. |
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