Thistle Funnel
Thistle Funnel 30 cm stem.
Thistle Funnels are used to add liquids to a narrow necked flask or other container. 
They are particularly useful if the liquid addition must be low down in the flask where a funnel or dropping funnel would have too short a stem.
They are usually passed through a bung or clamped in place. 
 

Thistle Funnel