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
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.
- 12 GPMFlow
- NoNSF/ANSI 55
- LEDLamp
- 1 yearWarranty
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- No mercury lamp to change every year; the LED module is rated 8,000 hours of running time
- Starts instantly when water flows, with no warm up and no heating of standing water
- Sold and shipped by Amazon
- No UV dose, power, pressure rating or monitoring details are published
- The 8,000 hour life counts every hour of flow, so a busy household uses it up much faster than iSpring’s 11 year example
- Not NSF certified
The iSpring LED UV family
Every iSpring LED UV model we rank, smallest first. Ratings compare each against its own flow.
| Model | Flow | Rating | Price |
|---|---|---|---|
| iSpring UVF20 LED (this one) | 12 GPM | 2.3/5 | $309.99 |
| iSpring UVF50 LED | 13.2 GPM | 2.2/5 | $499.99 |
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 | UVF20 |
|---|---|
| Disinfection | |
| Rated flow | 12 GPM |
| NSF/ANSI 55 | No |
| Lamp | LED |
| Lamp life | 8,000 hours |
| Build | |
| Ports | 0.8 in |
| Warranty | 1 year |
Alternatives in this flow
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 $199A 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.
Amazon $299.90Compare
Compare the iSpring UVF20 LED with any other UV water purifier →
More from iSpring: every iSpring product ranked.