I chose among several similar models, I know that they all filter the same way, the main thing for me was to find a good quality system so that I could not think about replacing it for several years. I liked this one in the store more than the others, I also took it apart and assembled it right from them, examined it, they used good materials here. Installed for almost a year at my house, I changed the cartridges once, the flight is normal
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