Supplied with a round glass stopper and a PTFE stopcock plug Lower stems have an i.d. that allows for more complete seperation and eliminates the necessity of emptying the funnel

With Teflon ® stopcock plug Standard Taper ground neck has solid plug stopper of high-density polyethylene Designed for Federal Specification NNN-F-800

PTFE stopcock Graduated with double white ceramic enamel scale; right side ascends and left side descends Calibrated to contain With replacement stopper Designed from ASTM Specification E1096, Type 1C requirements Manufactured from 33 expansion, low extractable borosilicate glass…