Chromatography Vials. Worldwide Glass Resources offers a large selection of HPLC and GC Autosampler Vials which are manufactured from Type 1 borosilicate glass - Available in 2ml (12x32 mm), and 4ml (15x45 mm)- Clear or Amber - Finishes for 2ml vials available in 8-425, 9mm, 10-425, 11mm crimp, and 11mm Snap Ring finishes. 8-425 Screw Thread