40-day drinking water supply Essentials With Water Preserver 

• Enough water for an emergency - Protect yourself and your family with 4 of these 5-gallon stackable water containers. Its recommended that you have one gallon of water per person per day in an emergency. This will keep fresh and clean. For drinking water, we recommend 1/2 gallon per day.
• High-grade BPA Free Containers - These containers are made from high-grade, non-toxic containers that are BPA-free and HDPE grade!
• Dependable water that won't go bad - The material on these containers prevents bacterial growth so your water stays cleaner.
• Save space with water storage - Since these containers are stackable, you can save on space in your preparation pantry! Each container measures 11 inches by 10 inches by 15 inches.What better way to prepare for an emergency than with a water supply for you and your family.