These water filter cartridges are to be installed on a cold or lukewarm water network, these activated carbon block cartridges will be ideal for filtering particles larger than 5 microns, in addition the activated carbon contained in these filters will eliminate bad tastes, unpleasant odors or chlorine present in the water. Double action for maximum efficiency. Fine filtration of impurities (5 µm). The composition of the block carbon of these cartridges also prevents the proliferation of bacteria and therefore preserves the filtering properties of the cartridges longer than with activated carbon granulate. These cartridges are essential for filtering city or borehole water in order to guarantee the distribution of healthy, clear and high quality water. They are particularly used in water purification applications or for an under-sink filter system. ADDITIONAL INFORMATION : These cartridges should be replaced approximately once a year, however its dual function can cause faster