Basic glass chromatography columns manufactured from 33 expansion, low extractable borosilicate glass.
- 420000-0000 is a plain column with an integral reservoir. It is tapered to a 2mm bore capillary tip and has a top tooled for a #2 rubber stopper.
- 420100 series are general purpose columns for quick separations. Their funnel-shaped tops permit easy filling and hold additional solvent.
- 420300 series are basic columns used for many separations in adsorption and ion exchange chromatography.