ADR75-V-E-T-1 is A. O. Smith's flagship purifier for large homes and offices. With hot, cold, and ambient functions, RO + UV technology, and compact integrated design, this brings the most convenient way to get purified water for the whole family or office. ADR75 is your ultimate mini water station at home. You get the purest water, without the security issues of regular water deliveries. With its smart indicators, you get to replace filters only when you need to, ensuring your family always have the purest source of water without throwing away filters too early. DOH registered