Permits solutions to be prepared with 89077-852 stirring magnet and added portion wise

The T-bore stopcock in the equalizing arm permits isolation of the contents for storage. Capacity, 100 or 250 mL. Lower threaded stopcock is all PTFE. Outer joint is a standard taper 14/20 or standard taper 24/25, inner joint is standard taper 14/35 or standard taper 24/40 with drip tube. The 100 mL size is calibrated in 1 mL subdivisions, the 250 mL in 10 mL subdivisions.