Crafted from high-quality, inert Type I borosilicate 33 expansion glass, these vials ensure exceptional clarity. Meeting the rigorous testing standards set by the Environmental Protection Agency (EPA), they are your ideal choice for storing and retrieving volatile solvents, sensitive compounds, and corrosive chemicals with utmost safety and reliability. Trust in the clarity and dependability of our clear EPA glass lab vials for all your laboratory needs. Match and add corresponding caps to your order by using the 'Add-Ons' feature.