Stay healthy and comfortably hydrated as you hike through large patches of wilderness thanks to the pump-action Katadyn Hiker Water Microfilter. Long backpacking trips require lots of water, and carrying this Backpacker Magazine-approved, eleven-ounce microfilter works much better than carrying ten gallons of water on your back. Easy to use and clean in the field, this reliable microfilter transforms random water sources into thirst-quenching satisfaction throughout your long trek or backpacking trip.