Chromatography Vials - 1.8mL Glass Vial Clear, with 9mm Blue Chromatography Vials Our range of products include 1.8mL Glass Vial Clear, with 9mm Blue Screw Cap, Aluminium Cap with Head Space Septa, Clear Micro-Insert Vial, 20mm Glass Vial, Aluminium Cap with Silicon White/PTFE White, 20ml Crimp Headspace Clear Vial, Flat Bottom and Colpak 10ml Crimp Headspace Clear Vial, Flat Bottom.