Use Aijiren 11 mm Glass Crimp Top Vials with aluminum crimp seal closures. These high-quality 11 mm glass vials are 2 mL, 12 x 32 mm and fit most brands of autosamplers. Made of superior quality 33 expansion borosilicate clear (Type 1, Class A), they meet all requirements of US, EU, JPN Pharmacopia. Choose from Aijiren brands.