AutoFlow™ XL Gravity Filter 10 L

I've been filtering for a group of six all weekend and the 10-liter bag means I only have to fill it twice a day. The flow rate is genuinely impressive, it's a huge upgrade from squeezing a pump filter.

Filled the whole 10-liter bag in about four minutes, and the flow rate didn’t slow down even halfway through a dusty afternoon at camp. The wide hose and lever shutoff made it easy to hand around without spills, and cleanup took less time than my old pump filter.

We were filtering water for six people at camp, and the 10-liter capacity meant we only had to fill it twice for the whole day’s cooking and drinking. The gravity flow is genuinely hands-off—hang it on a branch and it does the work while you set up the tent.