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,laboratory vials supplier,Spark,Varian,hplc vial inserts price,Hitachi,etc.