These 500mL PYREX® cylindrical separatory funnels are graduated to show approximate capacity, have a micro-finish No. 4 Product Standard Polytetrafluorethylene (PTFE) stopcock and a strong, lightweight No. 27 Standard Taper glass stopper.
- The PTFE plug fits into the micro-finish barrel
- The plug also reduces freezing problems and grease contamination
For replacement glass Standard Taper stoppers, see No. 7650; for PTFE stopcock plugs, see No. 7681.