The replacement filter for the Katadyn BeFree filtration bottle. Good for up to 1000 liters on average (may vary depending on sediment levels), this filter removes 99.9% of protozoa and 99.9999% of bacteria. To clean it, just shake, swish, swoosh, dip, or backflush with some clean water and you're good to go. Screw on, screw off, and screw being limited by the amount of water you can carry.

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