Pack of 12 disposable polyethylene terephthalate (PET) bottles with 250ml capacity. Square design is space-saving and convenient to handle. Useful for mixing, sampling, and storage applications. Feature easy-to-read raised graduations. Each bottle includes an autoclavable, linerless GL45 polypropylene plug-seal cap. Neck ID is 37mm. PET is transparent, lightweight, and break-resistant. Bottles can be used in environments ranging from -40° to 50° Celsius. Sterilized using gamma radiation. Individually bagged. PET cannot be autoclaved.