Dual-Position Stopper for Test Tubes, Polyethylene, Natural
Polyethylene stopper, natural colour. Two functional positions once fitted to the tube: loose position for aerobic work with gas exchange, and sealed position for anaerobic cultures requiring an airtight closure. Switching between positions is done directly on the tube—no need to remove the stopper. Simple, reusable design. Standard in microbiology, cell culture, and any application where control of the tube's internal atmosphere is critical.
In stock
SKU:
28149
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+150€ Península y Baleares
+150€ Península y Baleares
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| SKU | Product Name | Price | Qty | |
|---|---|---|---|---|
| TUDP-012-1K0 | Screw cap for test tubes for Ø 12 mm tubes |
€15.82
|
|
|
| TUDP-017-500 | Screw cap for test tubes for Ø 17 mm tubes |
€14.21
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Dual-Position Stopper for Test Tubes, Polyethylene, Natural
Polyethylene stopper with two closure positions on the tube. A practical solution for alternating between aerobic and anaerobic work without changing stopper or tube.
How It Works
Once fitted to the tube, the stopper supports two positions:
- Loose position: Allows gas exchange with the environment — for aerobic cultures or any application requiring ventilation.
- Sealed position: Airtight closure for anaerobic cultures or when the tube contents need to be isolated.
Switching between positions is performed directly on the tube, without removal.
Specifications
- Material: Polyethylene (PE)
- Colour: Natural
- Positions: 2 — loose and sealed
- For use with: Standard test tubes
Typical Applications
General microbiology, cell culture, fermentation assays, and any protocol where tube atmosphere control is critical. Also suitable for teaching laboratories running microbiology practicals that alternate between aerobic and anaerobic conditions.
| Brand | ASTIKs |
|---|
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