This is not the first time I have installed such filters for myself, reverse osmosis is the best choice, in my opinion. The water is very clean. Even too much, so you need a mineralizer, otherwise it's like distilled. Everything is installed easily and reliably, according to the instructions. It is necessary to prepare and decide how to drill holes in the sink and in the drain pipe and whether the supplied faucet is suitable. Have keys, a fumka and a screwdriver.
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