- Nitrogen round-bottom flasks (Schlenk flask) with NS stopcock
- Nitrogen round-bottom flasks (Schlenk flask) with PTFE needle-valve stopcock
- Nitrogen tubes (Schlenk tubes) with socket and NS stopcock
- Nitrogen tubes (Schlenk tubes) with cone and NS stopcock
- Nitrogen tubes (Schlenk tubes) with socket and PTFE needle-valve stopcock
- Nitrogen tubes (Schlenk tubes) with cone and PTFE needle-valve stopcock