HPLC Vials 10-425 1.5ml Screw Vials. Wide-opening vials provide an increased target area for easier sample preparation and to reduce the chance of bent or broken needles during sampling. Vials are manufactured of Clear, Type 1 Class A or Amber, Type 1 Class B borosilicate glass . Requires the use of 10-425 screw thread closures and 10mm septa.