TriForest Square / Octagonal PETG ergonomic media bottles are ideal for storage of media, laboratory reagents, and biological buffers. Bottles are radiation sterilized and come standard with a patented tamper evident closure system. They are also available with a standard cap. Graduation markings are molded in for reference filling. The bottles are provided gamma sterilized SAL 10-6, with blue caps engaged. Each case is specifically packaged for sterile production with multi-barrier elastomer packaging.