AquaCera CeraGrav elements all start with the silver impregnated ceramic microfilter. The incorporation of silver locked within the ceramic structure inhibits the growth of bacteria giving the ceramics self-sterilizing properties and removes the need for boiling of the filter to remove or kill the impurities within the ceramic pores. The CeraGrav range is then expanded, to add a granular activated coconut shell carbon core for chemical reduction purposes. AquaCera ceramics do not remove the beneficial minerals from the water, ensuring the filtered water is enjoyable to drink and yet safe from harmful impurities.