Jul 02, 2021 · 8mm clear shell vials poly cap Wheaton-HPLC Vial Inserts Cap finish is 5 mm Shell vials are designed for use with autosamplers that require 5 x 45 mm vials. Vials are are available in clear glass or natural polypropylene. 234Q06 has a limited volume of 3 mL with other vials 4 mL.