Description_x000D_ General description_x000D_ All of the columns listed below are constructed of borosilicate glass and are rated at a maximum pressure of 15psi (1 bar). Five configurations are available:_x000D_ A - Luer-Lock, Non Jacketed: Fixed polypropylene end caps, polyethylene bed supports, Luer-Lock inlet and outlet fittings._x000D_ B - Luer-Lock, Jacketed: Same as A (above), with a borosilicate glass jacket surrounding the column body for temperature control._x000D_ C - Open-ended: Fixed polypropylene ends (outside of tube only), without jacket or end fittings. Requires 2 flow adapters._x000D_ D - PTFE, non-jacketed: Threaded ends, removable PTFE fittings with shielded O-ring seals, 20 μm polyethylene bed supports, and 1/4-28 threaded tubing connections. Solvents contact only PTFE and borosilicate glass._x000D_ E - PTFE, jacketed: Same as D (above), with an acrylic jacket surrounding the column body for temperature control.