Geekpure GP-UV55W 12 GPM
#6 in Up to 12 GPMFull review
The lowest cost way to add a UV lamp to a filtered well system, with three years of lamps included. Little is published beyond that.
Amazon $189.99$189.99
2.2/5
A popular budget point of entry UV for a well that already has sediment filtration. Fine as a backstop, but nothing tells you the dose is being met.
- 12 GPMFlow
- NoNSF/ANSI 55
- MercuryLamp
- 1 yearWarranty
Check price at Amazon$299.90
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Flow switch runs the lamp only when water moves, saving power and lamp hours
- Alarm sounds if the lamp fails
- Sold and shipped by Amazon, so returns are easy
- 1 in ports keep pressure loss low
Cons
- No published UV dose for its 12 GPM rating, so it can’t be compared with certified units
- Only an 85 psi pressure limit, and iSpring wants a regulator above 43 psi
- 1 year warranty that excludes the lamp and sleeve
- Not NSF certified
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its flow. How we rank explains each one.
Specifications
| Model number | UVF55FS |
|---|---|
| Disinfection | |
| Rated flow | 12 GPM |
| NSF/ANSI 55 | No |
| Lamp | Mercury |
| Lamp power | 55 W |
| Lamp life | 9,000 hours |
| Monitoring | |
| UV intensity sensor | No |
| Lamp failure alarm | Yes |
| Shutoff valve | No |
| Build | |
| Chamber | 304 stainless steel |
| Ports | 1 in |
| Maximum pressure | 85 psi |
| Voltage | 120 V |
| Warranty | 1 year |
Alternatives in this flow
Bluonics 55W UV 12 GPM
#7 in Up to 12 GPMFull review
A low cost backstop for a home well that already has sediment and carbon filters. Good value, but it doesn’t measure what it delivers.
Amazon $199$199
iSpring UVF20 LED
#8 in Up to 12 GPMFull review
A low maintenance LED option for a modest home that already filters its well water. Too little is published to trust it as the only barrier on a contaminated well.
Amazon $309.99$309.99
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