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The MSR AutoFlow Gravity Filter represents the latest evolution of backcountry hydration, combining water filtration, storage and collection into a single, lightweight system. With the latest Hollow Fiber technology and the power of gravity, the AutoFlow is fast too—up to 1.75 liters per minute without a single pump stoke. 4-liter reservoirs allow you to filter large quantities at once making it perfect for groups, while quick and easy tool-free cleanings maintain high flow rates on extended expeditions.

Auto Flow Gravity Filter Features:

• No Pumping: Let's gravity do the work so you don't have to.
• Fast: Filters more than 1.75 liters per minute.
• Lightweight: Weighs only 10.5 oz. (299 g).
• Field-Maintainable: Can be cleaned repeatedly without disassembly for flow recovery.
• Adaptable: Connects to most any bottle or reservoir with included Universal Bottle Adapter.