Oct 26, 2021 · VOA Vials. Industrial Glassware. High-quality borosilicate glass vials, open-top caps, .35" Teflon/silicone septa, pre-cleaned with Certificate of Analysis Each case contains 4 boxes of 72 vials Available in clear and amber and . 0.25 ml : HCL Preservative, GHS label Made in USA.