A.O. Smith AORO-50: NSF certification check
Certified to: NSF/ANSI 58 (per NSF's public listing, checked 2026-10-17).
| Type | Reverse osmosis system |
|---|---|
| Replacement element(s) on NSF listing | S1448RS module |
| Daily production rate (NSF/ANSI 58 listing) | 11 gallons/day |
| Replacement filter price | Not verified from the manufacturer's own store (data gap) |
| NSF listings | NSF/ANSI 58 |
Exactly what NSF lists
NSF/ANSI 58: Reverse osmosis systems: TDS plus optional health claims
Certified claims on NSF's listing: Arsenic (Pentavalent), Barium Reduction, Cadmium Reduction, Chromium (Hexavalent) Reduction, Chromium (Trivalent) Reduction, Copper Reduction, Fluoride Reduction, Lead Reduction, Nitrate/Nitrite Reduction, Radium 226/228 Reduction, Selenium Reduction, TDS Reduction.
Contaminant pages featuring this model
Lead · Fluoride · Arsenic (pentavalent) · Total dissolved solids (TDS) · Nitrate / nitrite · Hexavalent chromium (chromium-6)
View A.O. Smith AORO-50 on the manufacturer's site (plain link, not an affiliate link)
We have not tested this product. Certification means NSF verified specific claims under specific test conditions; it does not mean your water will be safe. Get your water tested and see the methodology.