- Perfect for travelers or for outdoor enthusiasts such as hunters, hikers, campers, boaters and anglers. -Eliminates more than 600 kinds of bacteria, providing you safe and clean drinking water worry-free. -Purifies water on-the-go whether the water source is tap or a freshwater stream, waterfall, river, creek, or lake. -Uses a silver membrane filter to eliminate up to 99.99% of bacteria, parasites, and pathogens such as E.coli, giardia, crypto, etc. -Each filter provides up to 12 gallons (100-150 cups) of pure water. -Compact and easy to carry -BPA free -No pumps, hoses, batteries, or attachments -Can be attached to filter into a standard water bottle -Earth friendly and cost-effective