Chorus II/II+/III water purification system configurations for water type II/II+/III accordingly. The systems need tap water. The most innovative model on the market. Led indicators for problems or need of cartridge exchange. Produced water conductivity 1-15 mW-sm for Chorus II and Chorus II+ three different models depends on the application – RO/DI, UV/DI, UV/EDI and TOC<30 ppb. Particles removal till 95% and ТОС<50 ppb for Chorus III. Capacity till 20 l/hour for Chorus II and Chorus II+ and till 30 l/hour for Chorus III. It is possible to use reservoirs 15, 30, 60 and 100 l.