Chemglass CG-1747-04 Glass Squibb Style Separatory Funnel, with 4mm PTFE Stopcock, 250mL Capacity Go to amazon.com Related posts The 16 best separatory flask 2022 FeatureSquibb style separatory funnelComes with 4mm stopcock#22 PTFE stopper250mL capacitySupplied complete with a flask length PE stopper DescriptionSquibb style separatory funnel with a PTFE Stopcock. Supplied complete with a flask Length PE stopper of the listed size.