. As far as I know it works. If you're unfamiliar with reverse osmosis systems, including push-fit fittings and how they sometimes require extra effort to go all the way (as opposed to halfway if you're not careful), you may have leaks, but that's likely to be the case with any system . In terms of micron size, each size has its pros and cons, including flow rate and durability, in addition to how hard it filters.
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