Storage Vials & Storage Caps. Aijiren 4 mL screw top glass vial, 12 mL screw top glass vial, 22 mL screw top glass vial, and 40 mL screw top glass vial storage vial kits contain screw top glass vials constructed from Type 1 borosilicate glass. Available as both clear glass vials or amber glass vials , open top screw caps with PTFE/silicone septa, or PTFE lined storage screw caps that offer broad chemical resistance.