HPLC 2ml Vials & Caps (9-425). . 9-425 Autosampler Vials are manufactured from Type 1 borosilicate glass, available in clear or amber, 2.0 mL, 9 mm Short-Cap, Screw-Thread Vials (vial only) - Restek. Fit all 2.0 mL, 12 x 32 mm, crimp-top vial-based autosamplers. For an instrument reference chart for 2.0 mL, 9 mm Short-Cap, Screw-Thread Vials