Autosampler Vials, 100 Pcs Sample Vials 2ml HPLC Vials 9-425 2021 - 06 - 21 9mm Screw Thread Autosampler Vials are made of clear Type 1, Class A Borosilicate Glass with a writable label for sample identification. 2ml Clear autosampler vial,12mm Diameter, 32mm Height, 9-425 screw top, and included blue ABS Screw Cap Standard Autosampler Vial for HPLC