Simplify your backcountry to-do list with Sawyer’s dual-bag water filtration systems: The 2L system is designed to provide 2 liters of potable water in as little as 90 seconds, while the 4L system provides 4 liters of potable water in about 3 minutes. Using a hollow-fiber membrane and the power of gravity, this filtering method removes particles, protozoa, and bacteria down to 0.1 micron in size, and requires no pumping. It boasts easy setup and a fast flow rate, and weighs just 12 ounces packed. Finally, it’s fully field maintainable should you choose to extend your time in the wild.