PLUG ONLY, Stopcock

Pressure equalizing addition funnel, with Graduations, and a glass T-Bore stopcock in the equalizing arm permitting the purging and isolation of the funnel contents for storage. Both top outer and lower inner joints are the same size. Lower stopcock is a glass straight bore stopcock. Both stopcocks are 2mm high vacuum glass stopcocks having a S.S. constant pressure retention device.