AA Calci is simply inserted between the AA Osmo (or other reverse osmosis device) and the tap.

AA Calci is an optional mineralisation step which gives the filtered water a small amount of minerals. The installation can be installed in reverse osmosis installations either between the tank and the tap or directly after the reverse osmosis membrane. As the water flows very slowly over the coral calcium directly after the reverse osmosis membrane, this installation produces a greater level of mineralisation than installing the device between the tank and the tap. The Okinawa calcium granulate is obtained from the Okinawa coast under controlled and absolutely environmentally friendly conditions. This petrified coral is also used to add additional nutrients to food in powder form, for example in muesli. It is also made into calcium tablets. For Prime Inventions, coarser granules are made which have the optimal size and consistency for the mineralisation of drinking water.

The Calci EM also contains EM pipes. For more information on EM, see the section on EM 5 filter cartridges. For more information on EM, see on page EM ceramics.

Operating life:

Up to one year, depending on usage


The calcium granulate has been sterilised by heating. Please install under hygienic conditions.

Scope of delivery:

MC-1 Calci cartridge
MC-2 EM Calci cartridge

Anti lime scale cartridge

The EK-7 anti lime scale cartridge is used as additional stage before the pre-filter or main filter stage. The ion exchange resin inside the cartridge is reducing the lime scale when the water flows over. The EK-7 is improving the taste of hot and cold drinks which will be prepared with the over flown water (specially coffee and tea) and is protecting your coffee machine, kettle etc. for to much lime scale. The water flow should not be higher than 2 l/min. in order to to have an appreciable effect of lime scale reduction. As lower the water flow so higher the lime scale reduction.

Service life:

The capacity of the cartridge is up to the hardness grade of the incoming water. The max. capacity can be 1.900 l (hardness 5-10dh, German hardness) or 450 l (hardness 11-25dh, German hardness). The cartridge should be changed if the typically change of the taste of the water or chalk is seen when dried. A cartridge change after 6 month is recommended because of hygienic reasons


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Prime Inventions GmbH
Gerkens Hof 11
33758 Schloss Holte-Stukenbrock
Fon: +49 (0) 5207 510 96 - 0
Fax: +49 (0) 5207 - 510 96 - 99
Email: info@prime-inventions.de