MUHWA 2ml HPLC vials is made of high-quality glass material; 9-425 Screw Cap HPLC Vials Dimensions: Closure size 9mm, Diameter of the vial is 12mm and the GC Autosampler Vials A critical component to a successful chromatography 2.0 mL, Clear glass, 6.0 mm opening, crimp top, with marking spot SHELL VIALS WITH CLOSURES. 2mL ...