PYREX® Squibb Separatory Funnel, PTFE Stopcock, Standard Taper Joints, Corning®
These PYREX® glass separatory funnels have Polytetrafluorethylene (PTFE) No
2 standard stopcocks and inner and outer 19/22 Standard Taper joints. The PTFE plug fits into the micro-finish barrel. The plug also reduces freezing problems and grease contamination.