Common use glass aijiren hplc vials and caps with cap. 9mm 2ml Wide Opening Screw Vials. 9mm screw thread caps,septa,and vials are designed especially for use with hplc vials supplier''s and other rotating or robotic arm samplers 2ml,12X32mm vials are manufactured of Clear. type 1 Class A or Aer,Type 1 Class.