VEE GEE 20149 Series Separatory Funnels meet ASTM E-1096 Type 4 Specifications for Classification, Design, & Markings.

These separatory funnels feature smooth tooled tips, large, white block letters, and large marking squares.  Supplied with Teflon® stopcocks to eliminate freezing and lubricant contamination and to provide a precision fit within the barrel.  The stopcock bores, body openings, and stems are carefully aligned for even liquid flow with fast cut-off.  Made from Schott DURAN® borosilicate tubing with a low coefficient of expansion.  Borosilicate tubing also provides uniform wall thickness ...