Product Details (per container):

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. 

Product Specifications

Size: 9" W x 18" L x 6" H (shaped like rectangular blocks)
Product Weight when Empty: 2.52 pounds
Stacking Strength: due to 2 interior conical reinforcement columns
Interlocking Strength: they interlock using their male and female connectors (cross stack for safety)
Wide Lid Opening is 3 1/4'' in diameter - can fit average adult hand to reach inside
Full rubber gasket creating a tight seal is included inside the lid
Recommended Stacking Height: 4 feet
Average wall thickness of container is approximately 3/32 of an inch (.090)
FDA approved and BPA free 

Content Weights 

Water – 30 pounds; Rice – 27 pounds (264 adult servings); Beans – 28 pounds; Sugar – 26 pounds; Pet Food – 18 pounds; Sand – 48.5 pounds; 9mm rounds (5,000) – 120 pounds; .223 caliber rounds (2,100) – 57 pounds