Full side-by-side
| Spec | Doulton Ceramic Filter | WaterSource GEM 9000 | Winner |
|---|---|---|---|
| Origin | UK | Singapore | — |
| Distribution | Retail · specialty water shops | Direct retail · Evergreen Group subsidiary | — |
| Category | Ceramic under-sink filter (NOT a true ionizer) | Hydrogen-rich alkaline + portable | — |
| Plates | 0 | 9 | WaterSource GEM 9000 |
| pH (max alkaline) | 7.4 | 10.6 | WaterSource GEM 9000 |
| ORP | -40 mV | -700 mV | WaterSource GEM 9000 |
| Dissolved H₂ | 0.01 ppm | 1.2 ppm | WaterSource GEM 9000 |
| Flow rate | 1.8 L/min | 2.5 L/min | WaterSource GEM 9000 |
| Warranty | 1 yr | 2 yr | WaterSource GEM 9000 |
| Filter cost (each) | S$ 95 | S$ 220 | Doulton Ceramic Filter |
| Sticker price | S$ 320 | S$ 4,999 | Doulton Ceramic Filter |
| 5-year total | S$ 1,270 | S$ 7,199 | Doulton Ceramic Filter |
| Our rating | — | — | — |
Verdict
Cost over 5 years: Doulton Ceramic Filter saves S$ 5,929 over 5 years.
Lab performance: Doulton Ceramic Filter produces 0.01 ppm dissolved H₂; WaterSource GEM 9000 produces 1.2 ppm. The WaterSource GEM 9000 leads on hydrogen output.
Warranty: Doulton Ceramic Filter carries a 1-year warranty; WaterSource GEM 9000 carries 2. WaterSource GEM 9000 wins on coverage.
Where to buy + showroom info
Doulton Ceramic Filter
Retail · specialty water shops
Lineup: HIP3 · HCS · HCP · countertop and under-sink ceramic systems
Visit Doulton →WaterSource GEM 9000
Direct retail · Evergreen Group subsidiary
Showroom: 8 New Industrial Road #01-02/03, LHK3, Singapore 536200
Phone: +65 8860 6951 · Hotline +65 9325 6199
Lineup: GEM 9000 ($4,999) · GEM 9090NT ($3,999) · H001 ($2,888) · H2 Cap Plus ($365) · Alkalark ($199) · Alkaliser ($158)
Visit WaterSource (Evergreen Group) →No affiliate links · Waterionizer.sg earns zero from either purchase.