Eureka Forbes Aquasure from Aquaguard Smart Plus 6-Litres RO+UV+MTDS Water Purifier,Black The pioneering range of purifiers from Eureka Forbes, comes with superior craftsmanship powered by Universal, RO+UV+MTDS technology. The Aquasure range of water purifiers suffice all your needs keeping affordability in mind. The Aquasure range of water purifiers is built with the ability to purify water from any source.