The Purelab Flex 3&4 series is innovative and occupies an area of 25/35 cm, it is extremely comfortable to work with and easy to maintain. It produces type I water and uses tap water or pre-treated water. The ergonomic design and dispenser allows easy and accurate dosing of set amounts of ultrapure water. The dispenser takes into account in real time the conductivity or resistance, as well as the content of total organic carbon.