2ml 11mm Snap Top PP Cap with Glass Vials for Autosampler Nov 09, 2020 · TAGS: snap-top-vials 2ml-snap-cap-glass-vial hplc-autosampler-vial hplc-vial-caps 2ml-amber-hplc-vials 2ml-hplc-amber-vials The Snap Vial is made of USP Type 1, Class A, 33 Borosilicate Glass or USP Type 1, Class B, 51 Borosilicate Glass.