Overall rejection/removal rate: 98% to 99% for the Ultra-pure, 95% for the drinking water 1st stage: 5 micron sediment filter, removes sediment, rust, dirt. (replace every 6-12 month) 2nd & 3rd stage: premium grade coconut shell carbon block filter, removes chlorine, chloramines, bad taste and odor (replace every 6-12 month) 4th stage: high rejection TFC/TFM-100GPD membrane, removes 95% to 97% of chemical, minerals, dissolved solids, like arsenic, lead, silica, nitrate, copper, ammonia, sodium, fluoride, etc...
