2 mL screw top vials in clear with closures for wholesales for lab use 2 mL Screw Top Vials, Large Opening - 2 mL Screw Top Vials 29117-U: Vials, open-top screw cap, 2 mL large opening with closures, unassembled convenience packs volume 2 mL, amber glass vial, thread for 10-425, black polypropylene cap, PTFE/rubber septa, pkg of × 100 ea