As I have mentioned on several occasion I like to hike in the mountains near my home, and while I always carry water, I also carry a backup filter. On hot summer days, I have gone through a half gallon of water in a few hours. It can get over 100 degrees in the canyons.
The filter I carry is the Frontier Pro by Aquamira, it is a sweet little unit that with the filter, pre filters and a drinking tube weights less than three ounces. That sounds so unbelievable I had to go and weight it myself. The company’s literature says that it will filter 50 gallons of water, but I have been told that this is a very conservative figure and it will filter considerable more.
Because of it light weight and small size, it is only 5 ½ inches long and 1 /14 inches in diameter, it fits in your pocket. I like this because even if I am separated from my water bottle I still have a backup. I am rarely very far from water. For me it is just a matter of putting the drinking tube on one end and sucking water directly from the source. With the drinking tube, you can drink from a stream, a cup or almost any other water source.
The bite valve is easy to use and eliminates any confusion about which end goes into the water, even in the dark.
These are also great to use in bug out bags. The Frontier Pro filter will connect directly to any water bottle with a 28mm opening such as a Platypus® or standard spring water bottle
They remove 99.9 percent of Giardia, Cryptosporidium, and other contaminants and the activated carbon improves the taste.
While they do make a smaller unit, I like the Frontier Pro, for several reasons. Fifty gallons is enough water to normally get you out of a bad situation. I weights next to nothing and the price is right. If you shop carefully, you can buy them for $20.00 which is a real bargain. At that price you can afford to buy several and put them in your bug out bag, car and even carry one with you.
I have been very pleased with mine.