The AquaBrick? Water Purification System purifies ANY source of non-salt water and makes it safe, clean, potable drinking water. This is the Best portable water filter for camping, home, outdoors. High-performance DuraFlo? filter removes virus, bacteria (e-coli), protozoan, lead, and heavy metals. Purifies ANY non-salt water source. Using Nano Fiber Technology, our proprietary water filtration method safely purifies up to 700 gallons of contaminated water.