Full side-by-side

Doulton Ceramic Filter Mfr claim · H2O Life Source Mfr claim
SpecDoulton Ceramic FilterH2O Life SourceWinner
OriginUKUSA
DistributionRetail · specialty water shopsOnline · ships internationally · no SG distributor
CategoryCeramic under-sink filter (NOT a true ionizer)Alkaline ionizer (US import)
Plates09H2O Life Source
pH (max alkaline)7.410.5H2O Life Source
ORP-40 mV-700 mVH2O Life Source
Dissolved H₂0.01 ppm1.15 ppmH2O Life Source
Flow rate1.8 L/min2.5 L/minH2O Life Source
Warranty1 yr5 yrH2O Life Source
Filter cost (each)S$ 95S$ 210Doulton Ceramic Filter
Sticker priceS$ 320S$ 2,800Doulton Ceramic Filter
5-year totalS$ 1,270S$ 4,900Doulton 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$ 3,630 over 5 years.

Lab performance: Doulton Ceramic Filter produces 0.01 ppm dissolved H₂; H2O Life Source produces 1.15 ppm. The H2O Life Source leads on hydrogen output.

Warranty: Doulton Ceramic Filter carries a 1-year warranty; H2O Life Source carries 5. H2O Life Source 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 →

H2O Life Source

Online · ships internationally · no SG distributor

Lineup: MAX 7-plate · MAX 9-plate · MAX 11-plate residential

Visit H2O Life Source →

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