ISS-225 (100 vial tray + 80 vial tray) - PerkinElmer® | Sigma. 2021 - 05 - 27. Vials, open-top screw cap, 2 mL large opening with closures, unassembled convenience packs volume 2 mL, clear glass vial, thread for 10-425, black polypropylene cap, PTFE/silicone septa, pkg of × 100 ea. Inquiry.