DWK Life Sciences (Wheaton) Wheaton Sample Vials, 4mL or 0.14oz, Amber, 13-425 Finish with 14B Rubber Liner, Type I Borosilicate Glass (4 mL E-C Vial, Glass Amber, 13-425 Rubber Lined Cap)4 mL Economy Vial, Glass Amber, 13-425 Cap, Rubber. These economically priced sample vials are conveniently packed in two shrink-wrapped.