Never go thirsty with Frontier Pro. Engineered to keep you mobile, hydrated, and designed to quench your thirst in rugged conditions. Improved Filter: New replaceable Series III GRN line filter removes bacteria, Cryptosporidium and Giardia. Connectivity: Adapts to bottles, bladders, and gravity flow systems. Light/Compact: 2.5 oz compact, portable protection Pre-Filter: 3 replaceable pre-filters remove particles before filtration. Miraguard Antimicrobial Technology: Suppresses the growth of bacteria, algae, fungus, mold and mildew within the filter media.
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