10" Carbon Filter Cartridge The water in our homes supplied by waterworks gives much to be desired. It is contaminated with many chemical compounds, sediments from pipes, rust, stone, sand. All these pollutants negatively affect our bodies and the devices and installations in our homes. The only solution to contaminated water flowing in our taps is to use a filter that will eliminate any impurities and unwanted odor from the water. It purifies water from such contaminants as: chlorine chlorinated compounds heavy metals organic compounds mechanical contamination. Durability approx. 1-6 months - depending on the quality and degree of water pollution. Recommended by the manufacturer replacement every 2 - 3 months. Made in Poland!