Open Glass Column Tubes with Frosted Clear Glass Valve

This is an open glass column tube convenient for cleanup. The standard for glass filters is a pore size of 20 μm - 30 μm. If filters of other than pore size No. 3 are desired, specify the filter pore size number. There are glass valve or PTFE valve included kit, please select one depending on your purpose. Other size of open chromatography tubes is also available.