Full side-by-side

Panasonic TK-AS45 Mfr claim · WaterSource GEM 9000 Mfr claim
SpecPanasonic TK-AS45WaterSource GEM 9000Winner
OriginJapanSingapore—
DistributionMajor retail (Tangs, Best Denki, Courts)Direct retail · Evergreen Group subsidiary—
CategoryEntry-level alkaline ionizerHydrogen-rich alkaline + portable—
Plates39WaterSource GEM 9000
pH (max alkaline)9.510.6WaterSource GEM 9000
ORP-420 mV-700 mVWaterSource GEM 9000
Dissolved H₂0.32 ppm1.2 ppmWaterSource GEM 9000
Flow rate2.0 L/min2.5 L/minWaterSource GEM 9000
Warranty1 yr2 yrWaterSource GEM 9000
Filter cost (each)S$ 160S$ 220Panasonic TK-AS45
Sticker priceS$ 899S$ 4,999Panasonic TK-AS45
5-year totalS$ 2,499S$ 7,199Panasonic TK-AS45
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: Panasonic TK-AS45 saves S$ 4,700 over 5 years.

Lab performance: Panasonic TK-AS45 produces 0.32 ppm dissolved H₂; WaterSource GEM 9000 produces 1.2 ppm. The WaterSource GEM 9000 leads on hydrogen output.

Warranty: Panasonic TK-AS45 carries a 1-year warranty; WaterSource GEM 9000 carries 2. WaterSource GEM 9000 wins on coverage.

Where to buy + showroom info

Panasonic TK-AS45

Major retail (Tangs, Best Denki, Courts)

Lineup: TK-AS45 (3-plate)

Visit Panasonic →

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) →

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