Introducing the Nalge Nunc Heavy-Duty Vacuum Bottles! Designed for durability and efficiency, these polypropylene bottles feature a narrow mouth for precise pouring and minimal spills. With a generous capacity of 4000 mL, they are perfect for storing liquids at various temperatures. The heavy-duty construction ensures they withstand rigorous use, making them ideal for laboratories, fieldwork, or any demanding environment. Plus, the secure screw cap prevents leaks, giving you peace of mind. Elevate your storage solutions with these reliable vacuum bottles from NALGENE!