These 250 mL PYREX® pear-shaped glass separatory funnels have Polytetrafluorethylene (PTFE)No. 4 Product Standard stopcocks and strong, hollow No. 22 Standard Taper glass stoppers. 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 assemblies, see No. 7681.
Product Family Description:
The PTFE stopcock fits into the micro-finish barrel. The PTFE stopcock also reduces freezing problems and eliminates grease contamination.
For stopper only, see Cat. No. 7650.