Aquasana UV AQ-UV-MF
#8 in Over 12 GPMFull review
A certified high flow unit for a large home on treated or tested water that wants an NSF listing. Viqua’s monitored VH410M treats 14 GPM for less if certification doesn’t matter.
Amazon $1,598$1,598
The Aquasana UV AQ-UV-MF is the better UV water purifier overall, rated 2.6 to 2.2. The Aquasana UV AQ-UV-MF leads on certification and warranty. The iSpring UVF50 LED costs $1,098.01 less ($499.99 vs $1,598).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
iSpring UVF50 LED
#11 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
Which should you buy?
- Choose the Aquasana UV AQ-UV-MF for certification (NSF/ANSI 55 Class B (supplemental only) vs not NSF/ANSI 55 certified, and no UV dose published) and warranty (3-year warranty vs 1-year warranty).
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 | Aquasana UV AQ-UV-MF | iSpring UVF50 LED |
|---|---|---|
| Overall rating | 2.6/5 | 2.2/5 |
| Value 25% | 33 $122.92 per GPM ($1,598, 13 GPM at 40 mJ/cm²) | 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) |
| Certification 20% | 50 NSF/ANSI 55 Class B (supplemental only) | 0 not NSF/ANSI 55 certified, and no UV dose published |
| Monitoring 20% | 40 lamp failure alarm, lamp change countdown | 50 monitoring not published (neutral score used) |
| Lamp life 10% | 6 9,000 hour mercury lamp | 0 8,000 hour LED lamp |
| Warranty 25% | 22 3-year warranty | 0 1-year warranty |
Specifications
| Aquasana UV AQ-UV-MF | iSpring UVF50 LED | |
|---|---|---|
| Disinfection | ||
| Rated flow | 13 GPM at 40 mJ/cm² | 13.2 GPM |
| NSF/ANSI 55 | Class B | No |
| Lamp | Mercury | LED |
| Lamp power | 45 W | - |
| Lamp life | 9,000 hours | 8,000 hours |
| Monitoring | ||
| UV intensity sensor | No | - |
| Lamp failure alarm | Yes | - |
| Lamp change countdown | Yes | - |
| Shutoff valve | No | - |
| Build | ||
| Chamber | 304L stainless steel | - |
| Ports | 1 in | 1 in |
| Maximum pressure | 100 psi | - |
| Voltage | 120 V | - |
| Warranty | 3 years | 1 year |