Editor's pickProOne Big+
Gravity-fed filter that strips lead, PFAS, fluoride, and microplastics. No plumbing required.
- No plumbing
- No electricity
- Counter-top
- Lab-tested

filter
RO-level performance without the storage tank or 4:1 wastewater ratio.
As an Amazon Associate, The Home Detox Company earns from qualifying purchases. It does not change what you pay or what we recommend.
Quick take
Why we picked it
RO-level performance without the storage tank or 4:1 wastewater ratio.
Three-stage cartridge system that mounts under the sink. Removes 232+ contaminants without RO waste water.
Lab verification
LAB VERIFIEDThis product carries third-party lab data we've reviewed ourselves. Below are the specific certifications we relied on.
Where to buy
Alternatives
Other picks in the same category we'd also consider, ranked the same way.
Editor's pickGravity-fed filter that strips lead, PFAS, fluoride, and microplastics. No plumbing required.
Premium pickReverse osmosis on the counter. Four-stage, certified for 84 contaminants including the full PFAS panel.
Best entry-levelThe starter swap. Tested for 30+ contaminants including microplastics and lead, with published lab data.
Recommended based on the criteria for the water chapter, written down before we shopped. Read the methodology →