MSR Autoflow XL Gravity Filter

This extra-large AutoFlow gravity filter quickly delivers ten litres of drinking water - while you set up your base camp, eat, cook or chill. Thanks to its large capacity, you'll need to fetch water less often. The AutoFlow XL's pack size is comparable to that of the 4 liter version. The sturdy, flat bottom achieves twice the volume with a total weight of only 340 g (12 oz). It is extremely lightweight and stows super small. Yet it offers the luxury of pump-less filtration for tent campers, exploration teams, horseback riders, and other adventure seekers. A single 10 liter fill provides one to two people with their daily drinking water needs.