Frizzlife PD600-TAM3
#11 in TanklessFull review
For a buyer who wants mineralized tankless RO with low running costs and accepts maker test claims instead of NSF 58 certification.
Amazon $399.49$399.49
The Frizzlife PD600-TAM3 and the Frizzlife PD800-TAM4 are evenly matched, rated 3.1 and 3.1. The Frizzlife PD600-TAM3 leads on price. The Frizzlife PD800-TAM4 wins on output. The Frizzlife PD600-TAM3 costs $110.49 less ($399.49 vs $509.98).
Frizzlife PD800-TAM4
#12 in TanklessFull review
For a household that wants fast mineralized RO water with low filter costs and does not need NSF 58 certification.
Amazon $509.98$509.98
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Frizzlife PD600-TAM3 for price ($399.49 vs $509.98).
- Choose the Frizzlife PD800-TAM4 for output (800 gallons a day vs 600 gallons a day).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every tankless under-sink reverse osmosis system; a clear win is highlighted. How we rank explains each one.
| Factor weight | Frizzlife PD600-TAM3 | Frizzlife PD800-TAM4 |
|---|---|---|
| Overall rating | 3.1/5 | 3.1/5 |
| Certification 25% | 30 not certified to NSF/ANSI 58; certified to NSF/ANSI 372 | 30 not certified to NSF/ANSI 58; certified to NSF/ANSI 372 |
| Filter cost 20% | 47 $117 a year in replacement filters | 46 $119 a year in replacement filters |
| Water wasted 15% | 95 2:1 pure to drain | 95 2:1 pure to drain |
| Output 10% | 43 600 gallons a day | 71 800 gallons a day |
| Price 15% | 63 $399.49 | 44 $509.98 |
| Warranty 15% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Frizzlife PD600-TAM3 | Frizzlife PD800-TAM4 | |
|---|---|---|
| Filtration | ||
| Output | 600 gallons a day | 800 gallons a day |
| Pure to drain | 2:1 | 2:1 |
| Stages | 8 | 9 |
| Remineralization | Yes | Yes |
| NSF/ANSI 58 | No | No |
| Other certifications | NSF/ANSI 372 | NSF/ANSI 372 |
| Replacement filters | $117 a year | $119 a year |
| Build | ||
| Tank | Tankless | Tankless |
| Booster pump | Yes | Yes |
| Smart faucet | No | Yes |