For a home whose well, lender or health department needs a certified Class A system. Overkill for a cabin that just wants a budget backstop.
Amazon $3,174.98
A bare bones budget UV for a cabin or a well that already passes bacteria tests. Too little is published to rely on it for a known problem.
- 12 GPMFlow
- NoNSF/ANSI 55
- MercuryLamp
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- One of the cheapest whole house UV units, with a spare lamp in the box
- Replacement lamps cost about $40, far less than name brand lamps
- All wetted parts are stainless steel and quartz
- Only a 40 W lamp for a 12 GPM rating with no stated dose, so expect a light dose at full flow
- No published lamp life, pressure limit, alarm or warranty
- 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 | HQUA-OWS-12 |
|---|---|
| Disinfection | |
| Rated flow | 12 GPM |
| NSF/ANSI 55 | No |
| Lamp | Mercury |
| Lamp power | 40 W |
| Build | |
| Chamber | 304 stainless steel |
| Ports | 0.8 in |
| Voltage | 120 V |
Alternatives in this flow
A well built Canadian unit with an honest 12 GPM rating at the full dose, for a typical well home. Buy the LB6 version if you want a sensor from day one.
Amazon $840.15A dependable small home or cabin unit from the biggest name in residential UV, with a real controller warranty. Larger homes need the VH410 or a monitored system.
Amazon $685Compare
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