2ml Amber Screw HPLC Vials--Lab Vials Manufacturer 9mm 2ml Wide Opening Screw Vials. 9mm screw thread caps, septa, and vials are designed especially for use with Aijiren’s and other rotating or robotic arm samplers 2ml, 2X32mm vials are manufactured of Clear. type Class A or Amber, Type Class B borosilicate glass and include a write-in patch