These vials are used with many Aijiren™, Beckman™, CTC PAL™, Dionex™, Dynatech™, Jasco™, Perkin-Elmer™, Gilson™, Pharmacia™, Shimadzu™, Spectra Physics™, Thermo™ and Waters™ autosamplers. These are an excellent choice for budget minded laboratories that want the speed and ease of Snap Top Vials. Useful in HPLC.