2ml Standard Opening Screw Top (8-425) Vials The 8-425 are standard vials for GC and HPLC and are designed to work in a broad variety of autosamplers requiring narrow neck vials. Vials are preferentially used on instruments from the following manufacturersBeckman,CTC,Gilson,Knauer,glass vials with caps supplier,Spark,Varian,2ml hplc vials for sale,Hitachi,etc.