10mL crimp style headspace vials for the HS-10, HS-20, AOC-5000, and AOC-6000. Requires magnetic cap for use with the AOC-5000 or AOC-6000. Combine with 220-97331-90, magnetic crimp cap with butyl septa for an equivalent to CTC vial set 220-94562-00. Replacement for flat-bottom vial 220-97331-07.