| http://www.w3.org/ns/prov#value | - Perfect for everyday use, outdoor activities and a must in hostile environments where electricity, water pressure or treated water may not be available.The Crown Berkey?? system removes viruses, pathogenic bacteria, cysts and parasites and extracts harmful chemicals such as herbicides, pesticides, VOCs, organic solvents, radon 222 and trihalomethanes.
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