Glass Separatory Funnel with PTFE Stopcock

Conical separatory funnels in Bomex borosilicate glass, fitted with PTFE stopcocks that never need greasing. Used to separate two immiscible liquid phases by density — a cornerstone technique in extraction and purification.

• Bomex borosilicate glass, resistant to thermal shock
• PTFE stopcock — smooth control, no greasing, no seizing
• Conical body for a clean, readable phase boundary
• Available in 100 ml, 250 ml, 500 ml and 1000 ml