Water filters the old fashion way, with activated carbon for home drinking water
Water filters with carbon are of two types, Granular Activated Carbon (GAC) and Carbon Block Filters
Carbon is a substance being used to absorb impurities and filter odors and bad taste and is the most powerful absorbent
Most homes has been using activated carbon filters or powdered block carbon for water treatment for a long time
Activated carbon block filters generally have a higher contaminant removal ratio.
Activated carbon filters are usually measured in microns, and generally range from 50 microns "least effective" down to 0.5 microns "most effective"
A typical counter-top or under-the-counter filter system has from 12 to 24 ounces of activated carbon.
The most common carbon types used in water filtration are bituminous, wood, and coconut shell carbons. Coconut shell carbon is regarded as the most effective of the three.
Activated carbon filtration is very common in most home water treatment systems, to improved home drinking water by reducing or eliminate bad tastes and odors, chlorine, and many organic contaminants in municipal water
Most water-filter units like reverse osmosis and ozone filter system has a carbon block filter on top of the filtration to reduce, many organic contaminants and chlorine, and most of all bad tastes and odors
Sediment filters are necessary to prolong the life of activate carbon cartridge by eliminating gross contaminants that would otherwise clog the activated carbon
"Carbon Block Filters" are generally better then (GAC) "Granular Activated Carbon Filters" at removing sediment.