Best Overall: SpringWell CF1 (9.7/10)
- Four-stage filtration removes 99% of chlorine, chloramine, VOCs, PFAs, and more.
- 10-year/1-million-gallon filter capacity reduces maintenance to almost nothing.
- Filter can be combined with a water softener to also treat hard water.
- Costs less in the long run compared to cartridge-based systems.
- Three models are available to accommodate homes of all sizes.
- Features industry-leading lifetime warranty
- Won’t soften hard water or filter microbes, sulfur, iron, or manganese (usually only present in well water).
The SpringWell CF1 is the best whole-house water filter on the market because of its effectiveness against the most harmful and common contaminants in city water as well as its lifetime warranty.
PROS
The SpringWell CF1 is the best whole-house water filter on the market for the following five reasons:
Pro 1 of 5: Effective four-stage filtration
The SpringWell CF1 is my #1 recommendation because it does exactly what it’s designed to do: it removes 99% of chlorine, chloramine, VOCs, PFAS (and other forever chemicals), and many other common city water contaminants.
It does this using a four-stage filtration process that allows for more-effective contaminant removal than traditional two- or three-stage filters. The first stage includes a sponge-like material (known as a flex-bed) that distributes water over the entire filter media to increase contact time with all filters and improve filtration.
The second stage features KDF, which is a special alloy that reacts with and removes chlorine and many heavy metals, such as nickel, copper, and chromium. The third stage is activated carbon, which removes any remaining chlorine and chloramine as well as VOCs, so-called forever chemicals (PFAS/PFOA, PFOS, etc.), herbicides, pesticides, pharmaceuticals, and more.
This design makes the CF1 much more effective than traditional two- and three-stage filters because chlorine can consume activated carbon’s filter surface area and limit its ability to remove other chemicals. Using KDF media in stage two removes the majority of chlorine before water reaches activated carbon, which allows it to remove the many other chemicals in your water. Stage four is a 5-micron sediment filter that will remove any dirt, dust, clay, sand, etc. from your water before it heads to your tap.
All of this means if you have city water with junk in it, such as chlorine, chloramine, VOCs, PFAS, herbicides, pesticides, pharmaceuticals, or more, installing the CF1 will eliminate these contaminants at a higher rate than other filters and deliver high-quality, great-tasting drinking water to every tap in your home.
Here’s a side-by-side comparison of water test results before the CF1 was installed and after. There’s a lot I could say here, but the numbers speak for themselves.
