To better understand the water you drink,also to reduce pollution of the earth. Different houses in different regions have different water quality. City and country, buildings and detached houses water quality conditions are different in different regions, If possible, there should be customized options, using the filter that is most suitable for the home. Combine the most suitable filter module to get the most effective and reliable water purification effect. We provide 2 filter module DIY solution to make your purifier. Quick Change     Quick Change Solution (Filter head compatible with EVERPURE) High density activated carbon block YEC-552 High-density carbon block Quick Change Replaceable Cartridge YEC-553 Reduce lead high-density carbon block Quick Change Replaceable Cartridge GAC & UF DIY module YPC-1121 GAC+UF Replaceable module Quick Change Cartridge YPC-1122 Reduce lead GAC+UF Replaceable module Quick Change Cartridge More information or contact us