Full side-by-side
3M Under-Sink Filter Systems Mfr claim
·
StarWellness L9 Mfr claim
| Spec | 3M Under-Sink Filter Systems | StarWellness L9 | Winner |
|---|---|---|---|
| Origin | USA | Singapore | — |
| Distribution | Retail · home renovation channels | Direct retail | — |
| Category | Under-sink filter system (NOT a true ionizer) | Hot/cold water dispensers | — |
| Plates | 0 | 0 | Tie |
| pH (max alkaline) | 7.4 | 8.3 | StarWellness L9 |
| ORP | -30 mV | -150 mV | StarWellness L9 |
| Dissolved H₂ | 0.01 ppm | 0.1 ppm | StarWellness L9 |
| Flow rate | 2.5 L/min | 2.0 L/min | 3M Under-Sink Filter Systems |
| Warranty | 1 yr | 2 yr | StarWellness L9 |
| Filter cost (each) | S$ 220 | S$ 180 | StarWellness L9 |
| Sticker price | S$ 450 | S$ 1,990 | 3M Under-Sink Filter Systems |
| 5-year total | S$ 1,550 | S$ 3,790 | 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$ 2,240 over 5 years.
Lab performance: 3M Under-Sink Filter Systems produces 0.01 ppm dissolved H₂; StarWellness L9 produces 0.1 ppm. The StarWellness L9 leads on hydrogen output.
Warranty: 3M Under-Sink Filter Systems carries a 1-year warranty; StarWellness L9 carries 2. StarWellness L9 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 →StarWellness L9
Direct retail
Phone: +65 9835 0639
Lineup: L9 Wall Mount (new launch) · Aquatal Hot & Cold
Visit StarWellness →No affiliate links · Waterionizer.sg earns zero from either purchase.