Chemglass, CG-1744-04, Funnel Sep Squibb 1000mL 4mm PTFE Stpk #27 Stopper Neck with Detachable GL-14 TFE Drip Tip Glass Stopper
This unique separatory funnel is manufactured with a removable PTFE stem that virtually eliminates breakage normally associated with standard glass stem stopcocks.
Made entirely of PTFE, the stem attaches directly to the glass stopcock without o-rings or other gaskets.
Glassware equipped with this PTFE stem can survive repeated forceful strikes to the stem without breakage.
Supplied complete with a glass stopper of the listed size.