These screw-thread vials offer excellent performance on all autosamplers that use 12×32mm vials.

The vials and inserts are made from Type 1 borosilicate glass or polypropylene and meet strict tolerances. Their performance is equal to an 11 mm crimp-top vial, with the convenience and accessibility of screw threads. Conical inserts, inserts with plastic springs, and flat bottom inserts are also available to assist in consistent samples of low-volume samples.

All glass vials are precleaned and packaged an ISO Class 7 (Class 10000) cleanroom, in a box bearing the Class 10K seal. The result is a product that exceeds most OEM requirements for an autosampler vial at no additional cost. Cleaner vials improve performance by eliminating almost all particulates.