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The innovative BWT Magnesium Mineralizer filter cartridges form the 'core' of BWT's table water filter range and are exceptionally long-lasting. A single cartridge filters around 20 more litres than conventional systems, i.e. roughly 120 litres (with water hardness of 15-17.8deg dH).
This means 120 bottles of water you don't have to carry around or 120 fewer plastic bottles to dispose of.