Laboratory water purification system uses double stage reverse osmosis technology. It produces double stage RO water, Deionised, EDI and ultrapure water. These systems have 3 way on-line water quality sensor, multiple alarm with unique design and it has easy-to-replace cartridges pack unit. - Double stage reverse osmosis technology. - With tap water inlet, to produce double stage RO water and ultrapure water, quality can reach to18.2 MΩ.cm. - Built-in 5.8 liters PE tank and 10 liters airtight plastic pressure water tank. - Built-in 1st stage RO pump,2nd stage RO pump and circulating sanitizing pump.