Comparison : Item # 0023Q-2398, UV-VIS Cells/Type 29 Semi Micro Cell with 5mm lightpath, "Q"
Item # 0023Q-477, UV-VIS Cells/Type 29 Semi Micro Cell with 10mm lightpath, "Q"
Item # 0023Q-2399, UV-VIS Cells/Type 29 Semi Micro Cell with 40mm lightpath, "Q"
Item # 0023R-2400, UV-VIS Cells/Type 29 Semi Micro Cell with 5mm lightpath, "I"
Item # 0023R-2401, UV-VIS Cells/Type 29 Semi Micro Cell with 10mm lightpath, "I"