The GRO Series systems are light duty reverse osmosis systems designed to provide high-quality water for residential and commercial applications with a low cost. The base models are fully functional RO systems and an optional package is available to satisfy most monitoring and control requirements. Xylem Water Equipment Technologies (known as W.E.T.) has been providing reliable membrane based water purification technology and components worldwide since it was formed in 1975. The company was an early innovator in membrane technology systems designed to produce high purity water, purify water for reuse, and create fresh water from the world's oceans.