Katadyn Combi is an all-around filter, suitable for extremely dirty water and small groups up to 3 people. Effective against microorganisms, reduces chemicals and improves the taste of the drinking water.  The Katadyn Combi gives you a two-for-one package (active carbon and ceramic). Simple change to 1-stage operation (only ceramic without activated carbon stage). The tried and tested ceramic depth filter removes bacteria, protozoa and other disease-causing agents. The micro-organisms cannot pass through the mini pores of the filter ceramic (0,2 microns) because of their size (greater than 0,2 microns = 0,0002 mm). The output is approx. 1L/min. and the capacity up to 50'000L, depending on the water quality. The activated carbon should be exchanged after 2 fillings or 400L. This filter moves effortlessly from backcountry to motorhome, global travels to hikes, emergency use to temporary home use. No matter where, the replaceable activated carbon means chemical-free filtering. You also ge