Full side-by-side
Doulton Ceramic Filter Mfr claim
·
Kemp ION-X Mfr claim
| Spec | Doulton Ceramic Filter | Kemp ION-X | Winner |
|---|---|---|---|
| Origin | UK | Korea (SG distributor) | — |
| Distribution | Retail · specialty water shops | Direct retail (38+ years in SG) | — |
| Category | Ceramic under-sink filter (NOT a true ionizer) | Alkaline ionizer + dispensers | — |
| Plates | 0 | 9 | Kemp ION-X |
| pH (max alkaline) | 7.4 | 10.45 | Kemp ION-X |
| ORP | -40 mV | -702 mV | Kemp ION-X |
| Dissolved H₂ | 0.01 ppm | 1.18 ppm | Kemp ION-X |
| Flow rate | 1.8 L/min | 2.6 L/min | Kemp ION-X |
| Warranty | 1 yr | 3 yr | Kemp ION-X |
| Filter cost (each) | S$ 95 | S$ 180 | Doulton Ceramic Filter |
| Sticker price | S$ 320 | S$ 2,288 | Doulton Ceramic Filter |
| 5-year total | S$ 1,270 | S$ 4,088 | Doulton Ceramic Filter |
| 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: Doulton Ceramic Filter saves S$ 2,818 over 5 years.
Lab performance: Doulton Ceramic Filter produces 0.01 ppm dissolved H₂; Kemp ION-X produces 1.18 ppm. The Kemp ION-X leads on hydrogen output.
Warranty: Doulton Ceramic Filter carries a 1-year warranty; Kemp ION-X carries 3. Kemp ION-X 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 →Kemp ION-X
Direct retail (38+ years in SG)
Showroom: 10 Anson Road #02-86, International Plaza, Singapore 079903
Phone: +65 6272 5337 · WhatsApp +65 8368 1222
Lineup: iPro Hot & Cold · KempSmart Undersink · KempSmart i9 · i7 · Alphion MX · Mavello Z
Visit Kemp Singapore Pte Ltd →No affiliate links · Waterionizer.sg earns zero from either purchase.