Homemade Water Filter...

I have one of these in my B.O.B and my G.H.B.

Very simple to make, using a 20oz empty plastic water bottle. Cut off end and leave about 2 inches to add water.

Remember that depending on the condition of the water, it may need to be boiled before consuming. This will filter simple lake or running stream/river water. If you're filtering standing water; BOIL IT as well.