EZPackTM water bladder tanks are an innovative water solution for water storage at home and outdoor. They are available at sizes of 2.5, 5, 10, 25 and 50 gallon (10, 20, 40, 100 and 200 liter). Each bladder is built from two layers: outside layer built of special textile material, and an inner layer (insert) which holds the water. The inner layer is made from food graded materials, and can be easily replaced. The EZPackTM water bladder tanks provide clean and fresh water for a long time, and the proprietary food-graded inner layer keeps the water fresh and at drinking condition for many months.