Heavy duty bottle which can be used for storage as well as mixing and sampling. Includes linerless onepiece autoclavable polypropylene plug seal cap with drip free pouring rings. Optional red PBT caps and red ETFE pouring rings are available for dry heat sterilization (180°C). New glass bead indicates full capacity line on 100mL through 2 liter size. Bottles have permanent white enamel graduations and marking spots. Colorcoded polypropylene caps in a choice of orange green purple red and light gray are available.