Designate a safe space for your columns. The lockable HPLC Column Organizer easily mounts on the wall using keyholes and has 15 brackets, with room for storing two columns per bracket for a 30 column capacity. Two side-mounted, hinged, acrylic doors provide protection for the columns as well as instant inventory and identification. Choose between clear or colored doors. Constructed of white PVC for durability and ease of cleaning.