Upgrade your existing Katadyn Gravity Camp or Base Camp Pro with the BeFree Gravity Camp Upgrade Kit. This kit seamlessly converts your system into a Katadyn BeFree Gravity Water Filter System. It includes an adapter ring designed for the Katadyn Gravity Camp 6L or Base Camp Pro 10L water bag, facilitating the attachment to a BeFree filter element. An added feature is the integrated hose suspension for easy attachment of the outlet hose to the adapter ring. The kit also features a quick-release valve with an automatic outlet stop. Note: For complete setup, a BeFree filter element (not included) and a 6L or 10L water filter system with accessories are essential