iSpring UVF50 LED
#8 in Over 12 GPMFull review
The larger of iSpring’s LED units, for a home that wants mercury free UV with 1 in plumbing. As with all LED units here, little about its dose is published.
Amazon $499.99$499.99
The iSpring UVF50 LED is the better UV water purifier overall, rated 2.2 to 2.1. The Purcooflow WHF25V LED costs $230 less ($269.99 vs $499.99).
Purcooflow WHF25V LED
#9 in Over 12 GPMFull review
A low cost, mercury free UV stage for a home that already filters its water. A new product with little track record, so test the water after installing it.
Amazon $269.99$269.99
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.
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every over 12 GPM UV water purifier; a clear win is highlighted. How we rank explains each one.
| Factor weight | iSpring UVF50 LED | Purcooflow WHF25V LED |
|---|---|---|
| Overall rating | 2.2/5 | 2.1/5 |
| Value 25% | 43 $94.34 per GPM ($499.99, 5.3 GPM at 40 mJ/cm², from 13.2 GPM at an unstated dose taken as 16) | 65 $51.92 per GPM ($269.99, 5.2 GPM at 40 mJ/cm², from 13 GPM at an unstated dose taken as 16) |
| Certification 20% | 0 not NSF/ANSI 55 certified, and no UV dose published | 0 not NSF/ANSI 55 certified, and no UV dose published |
| Monitoring 20% | 50 monitoring not published (neutral score used) | 0 power light only |
| Lamp life 10% | 0 8,000 hour LED lamp | 0 8,000 hour LED lamp |
| Warranty 25% | 0 1-year warranty | 0 1-year warranty |
Specifications
| iSpring UVF50 LED | Purcooflow WHF25V LED | |
|---|---|---|
| Disinfection | ||
| Rated flow | 13.2 GPM | 13 GPM |
| NSF/ANSI 55 | No | No |
| Lamp | LED | LED |
| Lamp life | 8,000 hours | 8,000 hours |
| Monitoring | ||
| UV intensity sensor | - | No |
| Lamp change countdown | - | No |
| Shutoff valve | - | No |
| Build | ||
| Ports | 1 in | 0.8 in |
| Maximum pressure | - | 90 psi |
| Voltage | - | 120 V |
| Warranty | 1 year | 1 year |
| Released | - | 2026-09 |