Luminor Blackcomb LB5-151
#2 in Up to 12 GPMFull review
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 $840.15$840.15
3.4/5
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.
- 10 GPM at 40 mJ/cm²Flow
- Class ANSF/ANSI 55
- MercuryLamp
- 5 yearsWarranty
Check price at Amazon$3,174.98
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Certified by NSF to NSF/ANSI 55 Class A, the standard health departments look for on untreated well water
- UV sensor plus flow meter show the real dose, and a plug in valve can stop water if it drops
- Amalgam lamp lasts about two years between changes
- 5 year controller and 10 year chamber warranty
Cons
- Costs several times what an uncertified 10 GPM unit does
- A genuine 602854 lamp is about $310 on Amazon
- Must be mounted vertically
- The shutoff valve is sold separately
The Viqua PRO family
Every Viqua PRO model we rank, smallest first. Ratings compare each against its own flow.
| Model | Flow | Rating | Price |
|---|---|---|---|
| Viqua PRO10 (this one) | 10 GPM at 40 mJ/cm² | 3.4/5 | $3,174.98 |
| Viqua PRO20 | 20 GPM at 40 mJ/cm² | 3.6/5 | $3,840 |
| Viqua PRO30 | 30 GPM at 40 mJ/cm² | 3.6/5 | $5,030 |
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 | 650647 |
|---|---|
| Disinfection | |
| Rated flow | 10 GPM at 40 mJ/cm² |
| NSF/ANSI 55 | Class A |
| Lamp | Mercury |
| Lamp power | 100 W |
| Lamp life | 18,000 hours |
| Monitoring | |
| UV intensity sensor | Yes |
| Lamp failure alarm | Yes |
| Lamp change countdown | Yes |
| Shutoff valve | Yes |
| Build | |
| Chamber | 316L stainless steel |
| Ports | 1.2 in |
| Maximum pressure | 125 psi |
| Voltage | 120 V |
| Warranty | 5 years |
Alternatives in this flow
HQUA OWS-12
#3 in Up to 12 GPMFull review
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.
Amazon $199.99$199.99
Viqua VH200
#4 in Up to 12 GPMFull review
A 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 $685$685
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