9mm Screw Neck Sample Vial Certified-Aijiren 2ml Sample Vials WebChromatography Vials, Pre-assembled R.A.M Convenience Pack, 12x32mm Large Opening Clear R.A.M. Vial, 9mm Neck Finish, with Graduation Spot, 0.040” PTFE/Butyl Rubber Septa, Smooth Royal Blue Cap, 100/CS from J.G. Finneran at Southern Labw