Ace Glass 7298-05 Graduated Pressure Equalizing Funnel with Needle Valve Stopcock, 125 mL, 0-3 mm Bore

Threaded stopcock with PTFE plug permits smooth needle valve adjustment down to 0.1 mL/min. flow rate. Double PTFE ring seals prevent exposure of backup O-Ring to corrosive liquids. Angled position makes manipulation of stopcock easier than conventional style. Standard taper 24/40 joints top and bottom, double scale graduations.