Full side-by-side
| Spec | Panasonic TK-AS45 | Prime Water | Winner |
|---|---|---|---|
| Origin | Japan | Korea | — |
| Distribution | Major retail (Tangs, Best Denki, Courts) | Sole authorised distributor | — |
| Category | Entry-level alkaline ionizer | Alkaline ionizer | — |
| Plates | 3 | 9 | Prime Water |
| pH (max alkaline) | 9.5 | 11.0 | Prime Water |
| ORP | -420 mV | -728 mV | Prime Water |
| Dissolved H₂ | 0.32 ppm | 1.34 ppm | Prime Water |
| Flow rate | 2.0 L/min | 4.0 L/min | Prime Water |
| Warranty | 1 yr | 5 yr | Prime Water |
| Filter cost (each) | S$ 160 | S$ 160 | Tie |
| Sticker price | S$ 899 | S$ 2,800 / S$ 99/mo | Panasonic TK-AS45 |
| 5-year total | S$ 2,499 | S$ 5,940 | Panasonic TK-AS45 |
| Our rating | — | 4.7/5 | — |
Verdict
Cost over 5 years: Panasonic TK-AS45 saves S$ 3,441 over 5 years.
Lab performance: Panasonic TK-AS45 produces 0.32 ppm dissolved H₂; Prime Water produces 1.34 ppm. The Prime Water leads on hydrogen output.
Warranty: Panasonic TK-AS45 carries a 1-year warranty; Prime Water carries 5. Prime Water wins on coverage.
What we recommend: Prime Water (Sole-distributor Korean ionizer, 5-year warranty, no MLM markup). We disclose owning this brand — the numbers above support the verdict, you can replicate any of them with the published methodology.
Where to buy + showroom info
Panasonic TK-AS45
Major retail (Tangs, Best Denki, Courts)
Lineup: TK-AS45 (3-plate)
Visit Panasonic →Prime Water
Sole authorised distributor
Showroom: Singapore · by appointment via primewater.com.sg
Lineup: L Series · R Series · LV Series · RV Series
Visit Prime Water →Read our full review →
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