this 15-425 Screw sample vial is available in 8ml (vial size: 16.6x60mm) and 12ml (vial size: 18.5x65mm), which is mainly used in large volume sample. 8ml and 12ml sample vial can also used for storage sample, so this 15-425 screw cap sample vial can also called glass storage vial. B. Crimp Top GC Sample vial. 1.5ml/2ml crimp aluminum cap