Apr 06, 2021 · Chromatography Vials, Caps, Septa & Inserts, Tubes, Global supplier of HPLC&GC consumables. Our major products are chromatography autosampler vials with closures, inserts, crimper and syringe filters, etc; Water analysis consumables such as COD test tube. 1.5mL 8-425 Screw Neck Vial ND8 1.5mL 9mm Short Thread Vial ND9 1.5mL 10