Safe-Lab™ solid Teflon® PTFE plastic stopper with threaded polypropylene extracting nut is easily removed by turning the red extraction nut to apply a safe, gentle and even force against the mouth of the vessel. 3/pack.
- For use with separatory funnels and volumetric flasks
- Helps eliminate accidents and breakage
- Interchangeable with penny head stoppers
- Autoclave safe at 121ºC (250ºF)
TEFLON® is a registered trademark of The Chemours Company FC LLC and used under license by Bel-Art Products, Inc.
Stopper Size: 22/20