Cyst Filter replacement cartridge for Exstream Water Purification Bottles
- Filters sediment and protozoan organisms such as cryptosporidia and giardia
- Package of 2 filters
Exstream Water Purification Bottle Maintenance:
- Change the ViruStat Cartridge after 200 refills.
- Change the Cyst and Pre/Post Filters when water flow becomes constricted.
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