XK empty columns provide reliable and reproducible separations. The tube material is of borosilicate glass, which allows for visual inspection of the resins bed. The columns are made of biocompatible materials that exhibit excellent chemical resistance. A broad range of column dimensions makes XK columns suitable for many different purification needs. Column packing can be performed using either a packing reservoir or an extra column tube attached with a packing connector. The QuickLock mechanism of the adapter shaft facilitates rapid and easy movement of the adapter, simplifying adjustments of the bed height, disassembly, and cleaning. The design of the adapter plunger gives a uniform flow, which maintains the integrity of the packed bed during operations. An extensive range of spare parts is available, facilitating maintenance.