HQUA TWS-12
#5 in Up to 12 GPMFull review
A compact budget unit for a tight utility room, with cheap lamps. Like other budget units it tells you little about the dose.
Amazon $259.99$259.99
2.4/5
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.
- 12 GPMFlow
- NoNSF/ANSI 55
- MercuryLamp
- 1 yearWarranty
Check price at Amazon$199
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Among the cheapest whole house UV units, with a published 125 psi rating
- Alarm and red light warn when the lamp or ballast fails
- Replacement bulbs are $69 from Bluonics, and US based support in California
Cons
- No UV dose for the 12 GPM rating
- No UV sensor or shutoff valve
- 1 year warranty, with lamps and sleeves excluded
- Not NSF certified
The Bluonics Whole House UV family
Every Bluonics Whole House UV model we rank, smallest first. Ratings compare each against its own flow.
| Model | Flow | Rating | Price |
|---|---|---|---|
| Bluonics 55W UV 12 GPM (this one) | 12 GPM | 2.4/5 | $199 |
| Bluonics 110W UV 24 GPM | 24 GPM | 2.3/5 | $485 |
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
| 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 | 0.8 in |
| Maximum pressure | 125 psi |
| Voltage | 120 V |
| Warranty | 1 year |
Alternatives in this flow
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
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
Compare
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