WaterBrick Stackable Water Containers and Food Storage Container: 3.5 Gallons of Liquids or up to 27 Pounds (264 Adult Servings) of Dry Foods. Made of rugged, high density polyethylene (HDPE) with an easy grip comfort handle. These unique water containers, unlike any other, can also hold food and other life essentials while adding value by cross stacking up to 4 feet for maximum efficient storage. Wide diameter lid opening with notched easy grip lid allows for an average adult to pull stored contents out of the container by hand.