When you're goint to be far from civilization for extended periods, you can rely on the Hiker Pro Microfilter from Katadyn for safe, clean water. The Katadyn Hiker PRO comes with a removable filter protector to extend cartridge life in challenging conditions. Thanks to quick connect fittings the installation and removal of input and output hoses is easy! It also connects directly to hydration packs with 1/4" drink tubes (ie Camelbak). Includes: prefilter, bottle adapter, and carry bag. Filters up to 1150 liters/300 gallons. Weighs 11 oz.