PYREX® Squibb Separatory Funnels with PTFE [ST] Stopcock and Glass [ST] Stopper, Corning 6402
These Corning PYREX® squibb separatory funnels have a PTFE product standard stopcock and a strong, hollow standard taper glass stopper. The PTFE plug fits into the micro-finish barrel. This uniqe separatory funnel plug also reduces freezing problems and grease contamination. Material: Borosilicate Glass Code 7740.