MSR AutoFlow XL 10-Liter Backcountry Gravity Water Filter

Effortless clean water with gravity, without pumping

The MSR AutoFlow XL 10-Liter Backcountry Gravity Water Filter is built for groups and base camps where simplicity matters. Rely on gravity to push water through a hollow-fiber filter, delivering clear water without manual pumping. The system emphasizes rugged durability and field-friendly maintenance so you can focus on the hike ahead.

Performance you can count on

Filtration happens at about 1.75 liters per minute under gravity, enabling steady access to clean water from a variety of sources. The hollow-fiber element is sealed into a durable reservoir with RF-welded seams to minimize leaks and maximize life in the field. As water flows, you’ll appreciate the steady pace and the noticeably cleaner look of the output.

• Gravity-driven purification eliminates pumping and reduces effort on long days.
• 1.75 L/min filtration rate helps you keep up with hydration during group activities.
• Durable film reservoir uses RF-welded seams for reliability in rugged environments.

Capacity, flexibility, and comfort

With a 10-liter reservoir, AutoFlow XL is well suited for larger parties or base camping setups where multiple people drink from the same supply. The bag can hang or stand upright on its own, giving you flexible placement in tents or campsites and easier access when space is limited.

• 10-liter capacity supports multiple servings without frequent refills.
• Hanging or upright stand enables comfortable, versatile placement in tents or shelters.
• No tools are required to clean the filter in the field, making quick maintenance practical.

Versatility and compatibility

The system includes a universal bottle adapter that fits everything from large reservoir bags to smaller-diameter platypass fittings, so you can connect it to your existing hydration setup. A 12-ounce carrying pouch, hanging strap, and pocket clip are included for easy transport and quick setup, whether you’re at the trailhead or camp.

• Universal bottle adapter expands compatibility with different reservoirs.
• Included hanging strap and pocket clip simplify transport and hanging in camp.
• Compact 12 oz. accessory pouch keeps essential items close at hand.

What to expect in the field

Expect straightforward maintenance with back-flashing (backwash) capability to easily flush the hollow-fiber element, helping extend filter life between cleanings. The design avoids the need for tools, making field maintenance practical when you’re away from urban services.