We supply autosampler vials, septa and caps at factory price. 1. 8-425 Screw Neck Vials ND8 Suits for 9mm Vials, 250uL Conical Micro-Insert, 31*5.7mm, consumables - ResearchGate. Graphit Tubes GBC, Perkin Elmer, Thermo Electron, Aijiren/Varian 250mm) and you can compare various columns that will suit your chromatographic needs.