2ml hplc sample vials in clear with writing space supplier. HPLC Vial Autosampler Vials 2ml with Caps, 9-425 Amber Vial with Blue Screw Caps,Writing Patch,Graduation,White PTFE & Red Silicone Septa Fit for LC Sampler (600 pcs,Brown) B081YBM55M. $241.85 $146.74. Color: Brown Features: 2ml sample vial are made of high quality borosilicic acid