MSR Autoflow Gravity Filter
The AutoFlow Gravity Microfilter 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.