| Cat. No. | Description | PK | |
|---|---|---|---|
| 4672073 | Septum silicone white / PTFE blue, 55° shore A 0.9 mm, with slot | 100 | |
| 9783365 | Septum natural rubber red / TEF transparent, 60° shore A 1.3 mm, without slot | 100 |
The septum caps are available with slotted or unslotted septum. This allows the addition of substances into the closed tube for titration experiments without having to open the tube.
Alternatives