With an improved food-grade lining for better tasting water, and a more compact design to minimize bulk, the MSR AutoFlow Gravity Microfilter 4L should be on the top of your list. New reservoir made of durable film and an updated closure system reduce bulk for discreet packing No pumping required as the AutoFlow uses the power of gravity to filter 1.75 liters per minute, offering the efficiency to multi-task at camp Combines water collection, storage and filtration into one compact system Can be cleaned easily and repeatedly for flow recovery Improved food-grade lining ensures better tasting water
