Backpackers' favorite high-output microfilter. The Katadyn Hiker is ideal for lightweight backpacking, and eliminates Giardia, Cryptosporidium and most bacteriaCompact design and easy operation. AntiClog pleated cartridge requires no maintenance. Outdoor market's number-one-selling microfilter. Chosen the unrivaled best for field use in Backpacker Magazine's water filter comparison.