Pretty sure everybody should have one in their bug-out bag.
Don't waste your money on this. Sawyer bottle filter is .1 micron is the minimum you want for bacteria (Sawyer filter is 1 million gallon life time). 0.02 micron is needed to filter viruses.
Originally Posted by crays
It doesn't matter how many rifles you buy...they're still cheaper than one wife, in the long run.