Chlorine, Bad Taste, Odor, as well as dirt, rust & sediment down to 5 microns in size. Some removal of chemical contaminants is possible at low flow rates.
Larger carbon beds (larger filters) provide better filtration of chemical contaminants such as VOC's & THM's than smaller beds. However, even a large carbon may only be effective for this type of removal at low flow rates.
Small carbon filters are intended primarily for Chlorine, Taste, Odor & Sediment removal. Larger filters have more Granular Activated Carbon filtration media and are more effective for removal of VOC's & THM's, but only at low flow rates of 1-2 GPM.
H2O can not make any specific claims regarding the chemical contaminant removal ability of a whole house system. Variables involved such as contaminant concentration levels, flow rates, water temperature, service life of the media bed and other factors make it impossible for us to guarantee performance of VOC & THM removal.
Contact our office at 1-800-955-8561 for more information on removal of a specific contaminant.