These tubular USP/EP TYPE I injection vials are available in both clear and amber glass. Due to their closely held tolerances and uniform wall thickness, these vials are ideal for Lyophilization and storage of other liquid pharmaceutical products. Available in type 2R, 4R, 6R, 8R, 10R, 15R, 20R, 25R, 30R as per DIN/ISO 8362 standards.