Screw caps & septa only, no vials. NOT RECOMMENDED FOR HPLC AUTOSAMPLERS. Polypropylene cap with red rubber/PTFE beige septum, 45° shore A, 1,0mm. Use with any 1.5mL/2mL short thread screw vial. For HPLC autosamplers use 220-97331-27 (PFTE/silicone, non-slit) or 220-97331-28 (PTFE/silicone/PTFE, pre-slit.)