1pcs Lab Glass chromatography column with PTFE piston,sand core glass chromatography column with standard mouth Caliber 24#

1pcs Lab Glass chromatography column with PTFE piston,sand core glass chromatography column with standard mouth Caliber 24# Item: Sand core chromatography column (with PTFE piston) Material: High borosilicate glass Features: a sand-core filter is attached to the lower end of the tube to facilitate the filling of adsorbents such as alumina.A piston is welded between the lower end and the fine glass tube for controlling the holding or for discharging liquid. Application: for laboratory separation and purification.