Full side-by-side
3M Under-Sink Filter Systems Mfr claim
·
AOX Premium Mfr claim
| Spec | 3M Under-Sink Filter Systems | AOX Premium | Winner |
|---|---|---|---|
| Origin | USA | Singapore | — |
| Distribution | Retail · home renovation channels | Direct retail · e-store + corporate rental | — |
| Category | Under-sink filter system (NOT a true ionizer) | Antioxidant water dispenser | — |
| Plates | 0 | 7 | AOX Premium |
| pH (max alkaline) | 7.4 | 10.2 | AOX Premium |
| ORP | -30 mV | -620 mV | AOX Premium |
| Dissolved H₂ | 0.01 ppm | 0.95 ppm | AOX Premium |
| Flow rate | 2.5 L/min | 2.4 L/min | 3M Under-Sink Filter Systems |
| Warranty | 1 yr | 2 yr | AOX Premium |
| Filter cost (each) | S$ 220 | S$ 180 | AOX Premium |
| Sticker price | S$ 450 | S$ 1,799 | 3M Under-Sink Filter Systems |
| 5-year total | S$ 1,550 | S$ 3,599 | 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$ 2,049 over 5 years.
Lab performance: 3M Under-Sink Filter Systems produces 0.01 ppm dissolved H₂; AOX Premium produces 0.95 ppm. The AOX Premium leads on hydrogen output.
Warranty: 3M Under-Sink Filter Systems carries a 1-year warranty; AOX Premium carries 2. AOX Premium 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 →AOX Premium
Direct retail · e-store + corporate rental
Phone: +65 6456 4321 · WhatsApp +65 9271 7505
Lineup: Hot & Cold · Non-Electricity · Compac · PURE · TT Tap (award-winner) · AOX Traveller (portable)
Visit AOX Singapore →No affiliate links · Waterionizer.sg earns zero from either purchase.