Water Filter Pitcher The filter Cartridge for the Water Filter Pitcher Plastic :PP Filter Cartridge1) Plastic :PP 2) Materials inside: Active carbon and resin 3) Capacity of filter cartridge :150L/2 months 4) Active Carbon : Remove Chlorine, organic impurities,dust ,grain ,odor 5) Ion Exchange Resin : Remove Ca2+,Mg2+ and certain heavy metals such as lead and copper.Decrease PH.