This variable pathlength cell holder is designed to hold 1mm, 2mm, 5mm, 10mm, 20mm, 50mm and 100mm pathlength cells in the Ultrospec™ 7000, 8000 and 9000 spectrophotometers. To accommodate different pathlengths the clips should be moved to secure the cell at the required pathlength. Has only one thumb screw. Supplied with spacers for short path length cells. Whatman® #: 80-7100-05.