Silicone rubber sponge stoppers
These silicone rubber sponge stoppers are ideal for bacteriology, for long-termcultures, for filling and sterilising culture media and for the cultivating aerobic micro-organisms. Allows half the evaporation associated with regular cotton stoppers.
- Can be sterilised approx. 300 times at 180 °C for 10 hours
- Not hygroscopic
- Porous
- Washable and reusable
- Flexible, for test tubes and flasks