This narrow-mouth 500mL (16 ounce) high-density polyethylene (HDPE) Boston round bottle with a polypropylene closure is highly reliable and durable for long-term use. The leakproof bottle is ideal for storing shipping and packaging liquids and also suitable for everything from general lab use to storing critical high-value materials. It is manufactured from validated and controlled resins meeting a variety of food and pharmaceutical regulatory requirements. Rigid and translucent this bottle has excellent chemical resistance and can be used with most corrosives. Good for freezer storage to -100°C. Capacity: 500mL (16 ounce). Material: HDPE with a polypropylene closure. Closure size: 28mm. 12/Pack; 48/Case. Nalgene® #: 2002-0016.