Hydroviv Under Sink Water Filter

Hydroviv built something genuinely clever: a filter customized to your specific city's water problems using real utility and EPA data. For people in cities with known lead or PFAS issues, that targeted approach is appealing. The score is low not because Hydroviv is a bad filter, but because R3's framework is built on what can be independently verified — and right now, neither the PFAS protection nor the performance results can be confirmed by an outside party. If you're willing to take Hydroviv's word for it, you might be fine. If you need proof you can look up yourself, this filter can't provide it.