2ML Wide opeing Screw Thread HPLC Vial with PTFE Silicone Septa 2ml-9-V1002 - Aijiren Products Made In China, China Manufacturer. The vials are preferentially used on instruments of Aijiren, HTA, Shimadzu, Thermo Scientific, Varian, Waters ®, etc. 32*12mm, 1.5ml/1.8ml/2ml Screw Neck vials for GC and HPLC Wide opening requires Micro-Inserts with a diameter of 6mm Clear glass is made from