HQUA-OWS-12 Whole House UV Water Purifier, 12 GPM 40 W review
UV disinfection. Plumber recommended if you are not comfortable with this install. Skill and code, not a preference. No third-party certification on record. Claims below are manufacturer-reported.
What it removes
| Contaminant | Evidence | Stated reduction | Scope |
|---|---|---|---|
| Total Coliform | Manufacturer-reported | not stated | |
| E. coli | Manufacturer-reported | not stated |
Certified is an NSF, WQA, or IAPMO listing for that claim.
Microbes, when the water is already clear.
Install as the last stage after a 5-micron sediment filter and any softener or iron filter.
304 stainless chamber 37.2 x 2.5 in, 3/4 in MNPT, 120 V 40 W lamp HQUA-OWS-12L (GPH925T5L 4-pin), electronic ballast. Manufacturer flow table: 20 GPM at 16 mJ/cm2, 12 GPM at 30 mJ/cm2, 8 GPM at 40 mJ/cm2. Amazon listing includes one spare lamp; HQUA's 12T listing states lamp rated life 365 days, so 12-month lamp changes assumed. Replacement lamp $39.99 on Amazon -> annual est. $40. Not NSF 55 certified (HQUA not in NSF database; no certification on manufacturer page). Size to 8 GPM if you want the 40 mJ/cm2 NSF/EPA dose.