The Snap Top Chromatography Vial can accept either aluminum snap-on seals or polyethylene snap-on caps. The colors are white, red, and blue. You can choose from them, which is very suitable for short-term storage. Rated 4.7 /5 based on 259 customer reviews. 1.5ml snap vial 11mm snap vial 2ml snap vial snap cap snap top vials.