Katadyn Exstream XR Water Purifier Bottle Replacement Cartridge- 2pack
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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