GROHE Blue Magnesium + Zinc Filter (Enriches Water with Up to 35mg/l Magnesium and 3mg/l Zinc, 400L Capacity at 17° dGH, Compatible with GROHE Blue Home, Professional, Red, and Pure), 40691002

The filter, which has a capacity of about 400 litres at 17° dGH, works in 5 stages: first the pre-filtration removes rough particles like sand and dirt. Then the activated-carbon pre-filtration removes natural contamination (e.g. from domestic water supply). Next the ion exchanger reduces substances as limescale and heavy metals and adds up to 35mg/l magnesium and up to 3mg/l zinc. After that the activated-carbon filtration reduces substances responsible for unpleasant taste and odour (e.g. chlorine). And finally the fine filtration reduces fine particles. The result is perfectly pure and heath-giving water delivered straight from the tap! The filter is compatible with GROHE Blue Home, GROHE Blue Professional and GROHE Blue Pure systems. .