20-Gallon Boxed Water Kit (4: 5-gallon containers) ENOUGH WATER FOR AN EMERGENCY: The American Red Cross recommends a 1/2 gallon of drinking water a day in an emergency situation so this supply will provide weeks of drinking water. DEPENDABLE WATER THAT STAYS FRESH: The mylar bags keep your water safe from contamination and keep your water fresh! (Water not included. You must fill yourself.) EASY TO ASSEMBLE AND STORE: Each 5 gallon box is easy to set up. Just fill the bag with water, drop it in the box, and it's ready to use or store. SAVE SPACE WITH THIS WATER STORAGE KIT: Before use, easily store the flat water boxes and bags under your bed or other tight places. After filling up, easily stack boxes to save space. PERFECT FOR YOUR NEXT OUTING: Whether you're going camping or having a party in your backyard, having this kit around will make serving drinks a piece of cake.