The AquaTru Classic utilises reverse osmosis to filter tap water, directly connecting to your water system for a virtually unlimited supply of purified water. Similarly, the AquaTru Under Sink model employs a comprehensive multi-stage purification process. This includes a sediment filter, a pre-carbon filter, a reverse osmosis membrane, and a post-carbon filter, all of which are identical to those used in the AquaTru Classic. These filters work in concert to eliminate a wide range of contaminants, including chlorine, lead, arsenic, fluoride, and more, delivering water that is not only pure and clean but also tastes great.