Get cleaner, safer reverse osmosis drinking water filter straight from your kitchen sink with an easy-to-install reverse osmosis system. Certified to reduce 61 contaminants including PFAS, an RO system connects to your home’s tap and uses a sophisticated process to purify your water.
Reverse Osmosis
This filtration method works by using pressure to push water molecules through a semipermeable membrane. This creates a higher-concentration area of pure water on one side, while keeping out salts, minerals, metals and microorganisms on the other. It’s the same principle used in desalination to remove salt from seawater to make it potable.
A reverse osmosis water filter typically goes through four stages to achieve ultra-pure, clean water. The first two stages use a sediment filter and pre-carbon block to remove larger particles, colors, odors, organics and bacteria from the water. This prevents the RO membrane from clogging and helps to extend the life of the system.
The second stage involves a reverse osmosis membrane that rejects contaminants based on their size and ionic charge. This is where the RO system’s unique properties come into play. The membrane is designed to allow only water molecules to pass through, while rejecting other substances with a greater molecular weight or positive ionic charge. This includes dissolved salts (ions), heavy metals, fluoride and other chemicals, as well as bacterial cysts and viruses.
It’s important to note that reverse osmosis does not fully address every potential water contaminant. It does not remove all forms of lead, arsenic and fluoride, and may not eliminate certain bacteria and viruses. As such, it’s recommended that you rehydrate with traditional tap water instead of relying on pure reverse osmosis water for long-term consumption.