Freedom to Drink, Anytime, Anywhere: Perfect companion on camping trips, hike, trail runs, biking tours, fishing trips, and more! Enjoy safe drinking water in anywhere, anytime! The Katadyn Hiker water filter includes a carry sack and bottle adapter that fits most water bottles. The easy Fill Bottle Adaptor attaches directly to a drinking bottle Superior Filtration: Removes particles, protozoa, and bacteria down to 0.2 microns (.002mm), including giardia, salmonella, and cryptosporidia. Glass-fiber element is pleated for increased surface area to handle silt and muddy water Quick and Efficient Aproximately 48 strokes per min. provide 1 liter of clean drinking water. Great Taste Every Time: Activated carbon in the core of the filter improves the taste and reduces chemicals in your drinking water. Satisfaction Guaranteed: Try the Katadyn Hiker risk-free for 30 days! If you're not completely satisfied with its performance, we'll gladly refund your purchase. Experience the convenience and reliability of clean water on your outdoor excursions, backed by our satisfaction guarantee.