We have the main problem of water - a variety of small rubbish such as sand and it is not clear what else. Therefore, it was Crystal A that was taken, here in the first stage a propylene cartridge to trap such pollutants. True, it is recommended to change it more often than other modules, but this is logical, it clogs faster, especially if the water is problematic. As long as everyone is happy.
Filter under the sink Aquaphor Favorit ECO silver
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