Since 1928, Katadyn has been a leader in the development of high quality drinking water systems. Katadyn now owns three of the leading brands of water systems including PUR Outdoor Systems and Exstream water bottle purifiers.

Designed to be used with Exstream personal water purification systems and deliver 26 gallons (100 liters) of pure water, which can provide an entire month's worth (gallon a day) of microbe-free water for an extended trip or expedition. ViruStat water cartridges are EPA registered and remove over 99.9% of waterborne cysts and protozoa like Giardia and Cryptosporidium. It also kills over 99.9999% of waterborne bacteria and 99.99% of waterborne viruses. Essential for extended travel in regions with questionable water quality. Includes cyst filter and prefilter.

PLEASE NOTE: If you live in the state of Iowa, we are unable to sell you any water purification system due to Iowa Department of Public Health Restrictions. We apologize for any inconvenience.