The Katadyn Virustat Exstream Replacement Cartridge is designed for use with the Katadyn Extream and Extream XR water purification systems. The Virustat Replacement Cartridge can deliver up to 26 gallons of pure drinking water for your expedition. EPA registered, the Virustat Cartridge will remove over 99.99% of waterborn cysts and protozoa, 99.9999% of waterborne bacteria, and 99.99% of waterborne viruses.
The Virustat Exstream is highly recommended for use when traveling in regions with questionable water quality.