Oct 29, 2020 · aijiren's 2ml Screw Vial has many different caliber sizes, 8mm, 9mm and 10mm,The specification of the 2ml hplc vial is 11.6*32mm. There are two types of glass, 5.0type and 7.0type, and two colors of clear and amber. Customers can choose the appropriate matching hplc vial according to the chromatography consumables they use.