Full side-by-side

Doulton Ceramic Filter Mfr claim · GFS Innovation (multi-brand) Mfr claim
SpecDoulton Ceramic FilterGFS Innovation (multi-brand)Winner
OriginUKSingapore distributor
DistributionRetail · specialty water shopsB2B + B2C · quote-based
CategoryCeramic under-sink filter (NOT a true ionizer)Commercial + foodservice dispensers
Plates00Tie
pH (max alkaline)7.48.5GFS Innovation (multi-brand)
ORP-40 mV-150 mVGFS Innovation (multi-brand)
Dissolved H₂0.01 ppm0.05 ppmGFS Innovation (multi-brand)
Flow rate1.8 L/min3.0 L/minGFS Innovation (multi-brand)
Warranty1 yr2 yrGFS Innovation (multi-brand)
Filter cost (each)S$ 95S$ 200Doulton Ceramic Filter
Sticker priceS$ 320S$ 2,500Doulton Ceramic Filter
5-year totalS$ 1,270S$ 4,500Doulton 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$ 3,230 over 5 years.

Lab performance: Doulton Ceramic Filter produces 0.01 ppm dissolved H₂; GFS Innovation (multi-brand) produces 0.05 ppm. The GFS Innovation (multi-brand) leads on hydrogen output.

Warranty: Doulton Ceramic Filter carries a 1-year warranty; GFS Innovation (multi-brand) carries 2. GFS Innovation (multi-brand) 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 →

GFS Innovation (multi-brand)

B2B + B2C · quote-based

Showroom: 52 Ubi Ave 3 #05-36 Frontier, Singapore 408867

Phone: +65 6841 5952

Lineup: Blutower · Waterlogic · Elkay · Blupura · Innova

Visit GFS Innovation (2006) Pte Ltd →

No affiliate links · Waterionizer.sg earns zero from either purchase.