Professional crimp seal vial VWR- HPLC Autosampler Vials VWR® Versatile 11 mm Dual Crimp-Top/Snap-Cap Vials | 2021-08-12 Vials feature a versatile neck that allows closure by either snap-cap seals or aluminum crimp seals.Designed to use separating organic and inorganic compounds for analysis, chromatography vials come in different finishes to