What glassware can be used with Mya 4? Can I use my own? You can use your own tubes and vials: including HPLC vials, scintillation vials, microwave tubes for sealed reactions and more. All you need is the right aluminium insert (based on the external diameter and depth of the tube/vial). However, for round bottom flasks and process vessels, these are specific to Radleys and have been manufactured for optimal heat transfer as well as height tolerance. Our process vessels have been designed exclusively for Mya 4. These have straight sides, to mimic reactors on a small scale. These vessels range from 50 ml to 400 ml.