Advanced, all-in-one reverse osmosis technology; attractive yet durable styling with blow-molded polycarbonate cabinetry, and the OASIS® guarantee of quality and dependability. The OASIS® reverse osmosis cooler installs easily, directly plumbed to your cold water line for continuous water supply. Models are available in two or three temperatures: Cook 'N Cold™, or Hot, Cook 'N Cold™. An optional water quality monitor is also available