4ml screw-top vials (13-425) are suitable for Agilent 7673, Agilent 7683 and Agilent 6850 autosamplers, and can also be used for Perkin-Elmer Autosystem GC, Waters 48-position sample tray autosampler, Shimadzu AOC-14 /1400, Shimadzu LC-10A and SIL-2AS autosampler, used as chromatography autosampler vial and washing bottle.