... a safty and healthy pure water.Other filter cartridge as follows: Filter typePictureMain FunctionSuggest Using TimePP filterTo remove sand ... dirt, worn and rust particles6 monthsGAC-Granular Activated Carbon Filter To Adsorb the Chlorine ,VOC Organic Matter,Odor, ... , organic,odor,smell turbidity and suspending particles6 monthsRO membrane With 0.0001um filtration precision or separating and removing ...