In general, osmosis is like osmosis, I don’t think that anyone in 2022 produces filters and, especially, membranes, I believe that everything is purchased in China, so there is a difference: you put the system from the brand on the letter A or B, or Geyser (hmm, there must be another manufacturer on B) - none. And given the fact that all filters are connected according to the same standard (by fittings), even more so. If you don't like the geyser filters - put others.
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