1,000 liters of clean water in your pocket!
Complete your bug-out bag and emergency disaster kit with a tool that can make dirty water drinkable. Introducing the Lifestraw, it will let you drink from any kind of fresh water. And yes even murky brown poop water without needing too much space and ti doesn't require any electricity. This device can clean up to 1,000 liters of water which is enough to last one person's supply for a year. It has no moving parts and uses a 0.2 micron filter to remove 99.9999% of waterborne bacteria.