The Katadyn Base Camp Pro 10L is a step up from its little brother, the Gravity Camp 6L. But you get the same ease of filtering water for a group: hang, fill, start dinner and, before you know it, a flow rate of up to 2 liters per minute (thanks to the Ultra Flow FilterTM) has filled the bag with safe, clean water. It reliably filters bacteria, cysts and sediment. A cleanable filter protector lengthens the lifetime of the filter element so it can clean up to 1'500 liters of water, depending on the water quality. Thanks to the water level indicator window, it is clearly visible when another trip to the water source is necessary. The practical carry strap makes fetching water from a river or spring easier.