Stage One: PP Sediment Filters remove suspended solids, which are also known as sediment, turbidity, particulates, such as rust, dirt, sand grains, small pieces of organic matter, clay particles, or any other small particles in the water supply.

Stage Two: Granular Activated Carbon Filter (GAC) Filter removes certain chemicals, particularly organic chemicals, from water, and removes chemicals that give objectionable odors or tastes to water such as hydrogen sulfide (rotten eggs odor) and chlorine.

Stage Three: A Block Carbon Filter is made of Powdered Carbon versus Granular Carbon (as described above in Stage Two). They provide one more layer of contaminant removal, because the powdered block form is denser and water travels through it more slowly. The larger surface area created by the block carbon filter, means there is more time for water to be in contact with the carbon, thus more contaminants are removed.