网页Vial 40ml at Thomas Scientific. Open Top VOA Vials. Quality Environmental Containers. clear 33 expansion and amber 51 expansion borosilicate glass. Open top vials come assembled with polypropylene caps with low-bleed 0.125" PTFE/silicone septa inserted (.135" septa for E-series vials). Sizes are 20mL, 40mL, and 60mL.