Phenomenex Vial Part: Verex™ Vial, 9mm Screw Top, µVial i3 Verex HPLC, GC, and autosampler vials offer the lowest ion content possible to reduce sample loss and contamination. From start to finish, Verex HPLC, GC, and autosampler vial and cap products are manufactured to provide high quality, state-of-the-art solutions for your most challenging, sensitive applications.