The HPLC hplc vials &gc vials and closures listed in our offer are designed, constructed and manufactured for HPLC and LC / MS applications. In our catalog you will find hplc vials &gc vials for autosamplers of different volumes, from 0.1ml, over 1.5ml vials & 2ml hplc vials, 5m, 10ml to 20ml the vials compatible caps the vials septa. Vials has clear and amber, Autosamplers can work day and night ,so the vials & septa & caps are key for their consistant work , We supply different color for all the seals ,and the vials can be customized as your request, HPLC vials& GC vials is part of sample vials which are used for different autosamplers of chromatography instruments .