Comparison : Item # 0023Q-7624, UV-VIS Cells/Type 49 Micro Cell with 0.5mm lightpath, 'Q'
Item # 0023Q-7628, UV-VIS Cells/Type 49 Micro Cell with 1.0mm lightpath, 'Q'
Item # 0023R-7625, UV-VIS Cells/Type 49 Micro Cell with 0.5mm lightpath, 'I'
Item # 0023R-7629, UV-VIS Cells/Type 49 Micro Cell with 1mm lightpath, 'I'