volume 2 mL, amber glass vial (with graduated marking spot), pkg of 100 ea. SUPELCO_29376U. 29653U. Supelco. Certified Vial Kit, Low Adsorption (LA), 2 mL, pk of 100. volume 2 mL, amber glass vial (with marking spot), natural PTFE/silicone septa, thread for 9 mm. SUPELCO_29653U.