DS 450 ion exchanger, incl. cartridge, analogue conductivity, 1 unit(s)DS 450 ion exchanger, incl. cartridge, analogue conductivity, meter and tube set. Model DS 450 also includes a wall mount. Pressureless. Plastic ion exchanger system made of plastic (PE) for producing fully desalinated pure water using a mixed bed ion exchanger resin. Suitable for small laboratories with a daily requirement of up to 15 litres. Can be connected directly to the mains water supply. With analogue conductivity tester, hose set and