This page contains affiliate links, which means that if you click on the affiliate link and buy an item, I’ll receive commissions.
Aquasana carries 4 different under sink models
The most powerful one, OptimH2O® Reverse Osmosis + Claryum®, includes granular activated carbon, catalytic carbon, ion exchange, sub-micron filtration, reverse osmosis membrane, and remineralization technologies
There is a re-mineralization cartridge to put back calcium, magnesium, and potassium for optimally alkaline, pH balanced water for it as well.
All their filters are certified to NSF/ANSI Standards
In short, if you have fluoride, arsenic, hexavalent chromium, and radioactive elements in your water, and want to ensure the highest degree of their removal, you should go for reverse osmosis (RO) system, such as Aquasana OptimH2O® Reverse Osmosis + Claryum®
Aquasana filters are less expensive than many other popular ones and unlike Berkey’s water filters, they are NSF-certified.