TLG® Brand separatory funnels feature smooth tooled tips

Supplied with PTFE stopcocks to eliminate freezing, lubricant contamination, and to provide a precision fit within the barrel. The stopcock bores, body openings, and stems are carefully aligned for even liquid flow with fast cut-off. Made from heavy wall borosilicate 3.3 tubing with a low coefficient of expansion. Borosilicate tubing also provides uniform wall thickness.