Consumables for GC, HPLC and Headspace Analysis. Autosampler Vials for HPLC, GC La-Pha-Pack makes a vast array of autosampler vials to suit every model of HPLC/GC available in the modern analytical laboratory- glass vials with caps supplier, 2 ml vials and caps supplier, glass vials and caps manufacturer, glass vial caps supplier Scientific, Varian etc. Vials with Screw Necks as well as Crimp