Addition Funnel w/ Threaded PTFE Valve

The cylindrical addition funnel has a threaded, grease-free extended tip valve and pressure-equalizing arm. The design of the 2 mm PTFE plug permits semi-needle valve action. This model has a standard taper top outer joint at the bottom and a same-sized standard taper lower inner joint at the bottom. The height indicated in the product selection menu is the overall height.

Funnels with the 14/20 joints come with a CG-3000 stopper. For a similar model with a simple PTFE stopcock see CG-1702.  The replacement PTFE plug is item # CG-596-01.