Waterdrop RO

The Waterdrop RO filtering system recovers fluoride, dissolved salts, and heavy metals that are down to 0.0001 microns in size, using seven stages of filtration. Not only does it filter out particles from water, but it also enhances the flavor of the liquid thanks to the activated carbon, which functions like sponges and soaks up impurities.

Furthermore, it is tankless, which allows you to conceal the filter system under your sink, freeing up valuable counter space. Even better, Waterdrop RO is a lightning quick filter, cleaning a cup of hot water in just 12 seconds.

Amazon customers praised the straightforward installation process, with one reviewer stating: "The fact that all connections are made in one spot simplifies installation much more than other units. Also, connecting the different filters is so easy for me. You just need to simply insert them into the slot designated and turn. In my perspective, that is a significant step up. Even more, it is without a doubt the tiniest RO system I have ever owned. That is why I’m able to conceal it behind the sink while still having plenty of storage space."

Amazon ratings: 4.7 stars (from 2095 users)

Price: $499

Buy it at: https://www.amazon.com/dp/B07P1XFYJP