HQUA OWS-12

Last updated: November 2, 2026

HQUA OWS-12

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
Check price at Amazon$199.99

Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • 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
Cons
  • 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 numberHQUA-OWS-12
Disinfection
Rated flow12 GPM
NSF/ANSI 55No
LampMercury
Lamp power40 W
Build
Chamber304 stainless steel
Ports0.8 in
Voltage120 V

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