Full side-by-side

Pentair Everpure Mfr claim · WaterSource GEM 9000 Mfr claim
SpecPentair EverpureWaterSource GEM 9000Winner
OriginUSASingapore—
DistributionF&B / commercial · some residentialDirect retail · Evergreen Group subsidiary—
CategoryCommercial under-sink filter (NOT a true ionizer)Hydrogen-rich alkaline + portable—
Plates09WaterSource GEM 9000
pH (max alkaline)7.510.6WaterSource GEM 9000
ORP-40 mV-700 mVWaterSource GEM 9000
Dissolved H₂0.01 ppm1.2 ppmWaterSource GEM 9000
Flow rate3.0 L/min2.5 L/minPentair Everpure
Warranty1 yr2 yrWaterSource GEM 9000
Filter cost (each)S$ 180S$ 220Pentair Everpure
Sticker priceS$ 550S$ 4,999Pentair Everpure
5-year totalS$ 2,350S$ 7,199Pentair Everpure
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: Pentair Everpure saves S$ 4,849 over 5 years.

Lab performance: Pentair Everpure produces 0.01 ppm dissolved H₂; WaterSource GEM 9000 produces 1.2 ppm. The WaterSource GEM 9000 leads on hydrogen output.

Warranty: Pentair Everpure carries a 1-year warranty; WaterSource GEM 9000 carries 2. WaterSource GEM 9000 wins on coverage.

Where to buy + showroom info

Pentair Everpure

F&B / commercial · some residential

Lineup: H-300 · H-104 · Claris Prime · OW200L

Visit Pentair Everpure →

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.