Full side-by-side
3M Under-Sink Filter Systems Mfr claim
·
AlkaViva H2 Athena Mfr claim
| Spec | 3M Under-Sink Filter Systems | AlkaViva H2 Athena | Winner |
|---|---|---|---|
| Origin | USA | USA (imported) | — |
| Distribution | Retail · home renovation channels | Online · ships internationally | — |
| Category | Under-sink filter system (NOT a true ionizer) | Alkaline ionizer (US import) | — |
| Plates | 0 | 5 | AlkaViva H2 Athena |
| pH (max alkaline) | 7.4 | 10.3 | AlkaViva H2 Athena |
| ORP | -30 mV | -650 mV | AlkaViva H2 Athena |
| Dissolved H₂ | 0.01 ppm | 0.92 ppm | AlkaViva H2 Athena |
| Flow rate | 2.5 L/min | 2.4 L/min | 3M Under-Sink Filter Systems |
| Warranty | 1 yr | 5 yr | AlkaViva H2 Athena |
| Filter cost (each) | S$ 220 | S$ 220 | Tie |
| Sticker price | S$ 450 | S$ 3,200 | 3M Under-Sink Filter Systems |
| 5-year total | S$ 1,550 | S$ 5,400 | 3M Under-Sink Filter Systems |
| Our rating | — | — | — |
How we sourced these numbers: All specs are taken directly from each manufacturer's published product page (links at the bottom). We have NOT independently lab-tested these brands — only Prime Water (our own sister brand) is verifiable through primewater.com.sg. Independent lab testing is rolling out through 2026.
Verdict
Cost over 5 years: 3M Under-Sink Filter Systems saves S$ 3,850 over 5 years.
Lab performance: 3M Under-Sink Filter Systems produces 0.01 ppm dissolved H₂; AlkaViva H2 Athena produces 0.92 ppm. The AlkaViva H2 Athena leads on hydrogen output.
Warranty: 3M Under-Sink Filter Systems carries a 1-year warranty; AlkaViva H2 Athena carries 5. AlkaViva H2 Athena wins on coverage.
Where to buy + showroom info
3M Under-Sink Filter Systems
Retail · home renovation channels
Lineup: AP Easy Complete · AP2-C405-G · HCD-2 · Aqua-Pure
Visit 3M Singapore →AlkaViva H2 Athena
Online · ships internationally
Lineup: H2 Athena (5p) · Vesta H2 (8p) · Delphi H2 (7p)
Visit AlkaViva →No affiliate links · Waterionizer.sg earns zero from either purchase.