Screw neck vials, N 18 and N 20
These vials are used for storage of liquid samples.
- Made of clear glass
- Flat bottom
- 18-400 and 20-400 thread
- Usable volume of 16 ml and 24 ml
The suitable screw closures have bonded septa.
- Septa are firmly connected with the cap (bonded)
- High quality silicone/PTFE septum materials