Activated carbon (AC) filtration is most effective in removing organic contaminants, which are often responsible for taste, odor, and color problems of the water.
Found in many faucet filters and water pitchers, (AC) filters also reduce chlorine and pesticides.
AC filtration is recognized by the Water Quality Association as an acceptable method to maintain certain drinking water contaminants within the limits of the EPA National Drinking Water Standards.
“Carbon filter devices are available in several sizes and designs. Small units fit on kitchen taps and treat only 100 to 300 gallons effectively before a filter change is necessary.
Large under-sink units, often called in-line filters, are designed to treat up to 1500 gallons. On such a unit the canister is connected to the cold water line.
Other styles are available that treat all household water. An extra filter cartridge or canister is often included with the initial purchase.
Check on availability of filters and cost of replacement filters at time of purchase; they may be available from the same dealer, at plumbing supply stores, or by mail order.