Frizzlife PX500-A review
Frizzlife PX500-A Tankless Reverse Osmosis System with Remineralization (500 GPD)
By Tom Calder
A compact tankless RO with a mineral stage, sold on Amazon and in Frizzlife's own shop. Its only certifier listing is NSF/ANSI 372 for lead-free materials; the 42, 53 and 58 claims are SGS lab tests, not certifications. A good unit, but the Waterdrop G3s have the certified claims.
- Best for
- A compact tankless RO from Frizzlife's own store
- Skip it if
- You want certified contaminant reduction
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →
Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- Compact tankless design
- Remineralizing stage
- Also sold direct by Frizzlife
Worth knowing
- Only materials (372) certified
- Needs an outlet
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Who shouldn't buy this
Don't buy it if you want certified contaminant reduction: the Waterdrop G3P600 has it.
Key specs
| Type | Tankless under-sink, remineralizing |
| Rated output (maker) | 500 GPD |
| Pure to drain (maker) | 2:1 |
| Needs power | Yes |
| Certification (certifier's listing) | IAPMO: NSF/ANSI 372 (materials) only; 42/53/58 'SGS-tested' |
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the US price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one
Best for Certified for lead and PFOA/PFOS in one tankless system
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Best for The same certified claims for a smaller household
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Best for A cheaper tankless RO with a mineral stage