[Product Information]

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3-stage filtration process with tested 0.1 micron pore size removes minimum 99.9% of waterborne protozoan parasites and minimum 99.9999% of waterborne bacteria
Connects to squeeze pouch, any 29mm threaded water bottle, hydration pack, or use it as a straw to drink directly from any water source
Weighing just 3.2 oz. and only 6.7 inches long; easy and portable for you to take anywhere
Filter up to 1000 liter (largely depends on the water your filter). It also removes some heavy metals and improves the taste of purified water thanks to its included activated carbon filter
Meets all EPA guidelines and uses BPA-free material