Made in USA. Emergency water filter system for hiking, camping, and emergency situations. Effective on protozoan cysts. Economical - 1 System filters up to 20 gal. (75L) of water. Lightweight and compact emergency water filter system; fits into a pocket. Removes greater than 99.999% of Cryptosporidium and Giardia providing you with safe drinking water. Easy to use so you can drink directly from any water source. Activated coconut shell carbon filter with Miraguard Technology suppresses bacteria, algae, fungus, mold and mildew within the filter.