SweetWater Microfilter Mountain Safety Research Water Filter - Sale on Water Filters at the Lonely Planet Gear Shop
I have one of these I paid way less this was just the first site that popped up. Works great for backpacking what will you be useing it for camping? or SHFT type stuff?
For SHFT stuff I'm really luckly I have about 50,000 gallion pool out back I figure with boiling and filtration it will be safe to drink
If you only using it for camping IN THE U.S. just get a filteration one you don't need a purafication one for any water in the US are water is very clean