2Ml Autosampler Vials with Writing Area and Graduations, 9-425 HPLC, Screw Cap, White PTFE & Red Silicone Septa, 100 Pcs. The lab vials can be used on all common autosamplers, preferentially they are found on Aijiren, HTA, Shimadzu, Thermo, Varian, Waters, etc.