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. - With tap water inlet, to produce RO water and ultrapure water, quality can reach to18.2 MΩ.cm. - Built-in 20 liters airtight plastic pressure water tank - Built-in 13 liters high-capacity polishing resin cartridge - Unique design and easy-to-replace cartridges pack unit.