High-Capacity, Effortless Water Filtration for Basecamps and Large Groups

The MSR AutoFlow XL Gravity Filter 10L is a heavy-duty, ultra-high-capacity water filtration system engineered specifically to meet the demanding hydration needs of large backpacking groups, basecamps, river expeditions, and emergency preparedness kits. Eliminating the tedious and fatiguing chore of manual hand-pumping, this premium gravity-fed system utilizes a massive 10-liter reservoir. Simply scoop raw water from a wilderness source, hang the bag from a sturdy tree branch or boulder, and let gravitational force quickly pull the water down through the inline filter into your clean bottles, bladders, or storage jugs.

At the core of the AutoFlow XL is a high-performance hollow fiber membrane cartridge that delivers an elite flow rate of up to 1.75 liters per minute. The microfilter successfully traps 99.9999% of bacteria and 99.9% of protozoa, strictly meeting the rigorous NSF P231 testing protocols for safe drinking water. Built out of highly durable, food-grade polyurethane with a reinforced hanging strap, the reservoir features a wide-mouth opening for easy filling and a sediment trap to prevent premature clogging. Additionally, the system is fully field-maintainable, allowing you to quickly backflush the filter in seconds without tools to maintain optimal flow rates over its 1,500-liter cartridge lifespan.

Key Features:

• Massive 10-Liter Capacity: Oversized reservoir easily supplies clean water for large groups, cooking setups, and basecamp washing stations in a single hang.
• Pump-Free Gravity System: Uses gravitational force to deliver effortless, hands-free water purification while you setup camp or relax.
• Fast Hollow Fiber Core: Delivers an impressive flow rate of 1.75 liters per minute, minimizing wait times for thirsty trail groups.
• NSF P231 Bio-Protection: Advanced 0.2-micron microfilter removes 99.9999% of harmful bacteria and 99.9% of protozoa from wilderness water sources.
• Tool-Free Field Cleaning: Backflushes in seconds using the integrated components, allowing you to instantly restore flow rates in muddy or silty environments.
• Rugged and Packable: Constructed from highly durable, abrasion-resistant 3D-molded polyurethane that rolls down tightly for compact packing between campsites.
• Universal Bottle Adapter: Features a versatile quick-connect line hookup that integrates seamlessly with common wide-mouth water bottles and hydration reservoirs.