The use of water filters, such as your typical faucet water filter, has become a common thing among many households nowadays. Filters are quite essential, since tap water today can no longer be trusted as clean and free of contaminants. A filtration system, like a GE water filter or a Culligan water filter, is very much capable of reducing impurities as well as unwanted contaminants that your neighborhood tap water may have. 1 micron water filter