Ensure your hydration needs during emergencies with the Mayday Emergency Drinking Water Pouches. This pack of 100 individual 4.225 oz pouches have a 5-year shelf life and are purified by reverse osmosis to meet U.S. Pharmacopoeia standards. These airtight pouches are leak-proof, sealed, and sterilized, making them great for storing in case of disasters and emergencies. Each person should have a minimum of 2 pouches per day, and with these lightweight cartons, carrying is easier than ever. The purified water contains no additives or preservatives and can withstand temperatures ranging from 40 F to 230 F. These pouches are US Coast Guard approved, ensuring you have a dependable potable water supply for up to five years without the need for rotation schedules and additional purification.