Moisturize hands-free everywhereThe Source Widepack with filter is a complete set of a water bag with filter so that you can carry it in your bag and fill it with water everywhere by using the filter. No hassle with pumps, filters and chemicals, just fill your Widepac and use your Sawyer filter to drink clean water. Whether you drink from a creek, river, lake or pond with the filter you always drink clean water.Sawyer Mini FilterAttach the filter with tube to your bottle and you are no longer dependent on tapped or bottled water to refill your drinking system. The Sawyer Mini Filter System eliminates 99.99999% of bacteria and protozoa without the use of chemicals. The water is backwashed at intervals in the filter to generate maximum water steam. By drinking, the water passes the side walls of micro-fiber tubes in the filter. This is where the harmful bacteria and protozoa are trapped. The filter can filter up to 400,000 liters of fresh water. The filters are very robust and can always be reused, so no replacement filters are required.