Used to regulate the flow of gases or liquids into reaction systems.

• Equipped with a 2 mm PTFE stopcock
• Internal needle valve permits fine control of gases or liquids
• For replacement stopcock, see CG-434-70

Stopcock has a bore of 2 mm, and has an internal needle valve which permits fine control of gases or liquids added to reactions. Hose connection has an O.D. of 8m m at the middle serration.