Katadyn Virustat Replacement Filter

  • Product Number: 4974 - 840931

This Katadyn MyBottle/ExStream Virustat kit contains complete replacement parts for the MyBottle and Exstream water purification bottles.


  • Kit includes pre-filter, cyst filter and ViruStat cartridge
  • Change the ViruStat Cartridge after 200 refills
  • Change the cyst and pre-filter when water flow becomes constricted
  • Filters up to 26 gallons depending on water quality
  • 3-stage filter element incorporates iodine, 0.3 micron pleated glass-fiber membrane, and carbon


  • Effective: Removes chemicals, bacteria, giardia, cryptosperidium, and viruses