Under-sink filters NSF-certified to reduce Total dissolved solids (TDS)
Of the 13 models we track, 6 have a total dissolved solids (tds) reduction claim on NSF's public listing.
| Model | Standard(s) with this claim | Type |
|---|---|---|
| Pentair GRO-575B | NSF/ANSI 58 | RO |
| iSpring RCC7AK-BN | NSF/ANSI 58 | RO |
| iSpring RO500AK-BN (tankless) | NSF/ANSI 58 | RO |
| Express Water RO5DX | NSF/ANSI 58 | RO |
| Express Water RO10DX | NSF/ANSI 58 | RO |
| A.O. Smith AORO-50 | NSF/ANSI 58 | RO |
Not listed for this claim: Multipure Aquaversa, Multipure Aquaperform, Multipure Aqualuxe, Multipure Aquapremier, Everpure H-1200, Everpure H-300, Everpure H-104.
Not health advice. To know what is in your water, check your utility's Consumer Confidence Report or use a certified lab.