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HQUA-OWS-121 120V 40W 12GPM 1” Inlet/Outlet MNPT Whole House Ultraviolet Water Purifier Filter, +1 Extra UV Bulb

  • Based on 1,041 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jun 20
Order within 23 hours and 4 minutes
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Model: OWS-121


Features

  • 40W 12GPM unit, 37.2*2.5 in stainless steel chamber, 1 MNPT inlet/outlet.
  • Easy installation, No plumber needed. Horizontal installation and metal connector for the inlet/outlet is recommended.
  • NO CHLORINE, Chemical Free and Environmentally Friendly. No change at taste, color, odor, PH.
  • Safety and Reliable, 304 stainless steel and Quartz glass are proved to be reliable in different temperature, pressure, pH. And the only materials that will contact with your water.

Brand: HQUA


Special Feature: Heavy Duty


Product Dimensions: 37.2"L x 2.5"W x 2.5"H


Package Information: Bottle


Installation Type: Under Sink


Power Source: Corded Electric


Model Name: OWS-121


Maximum Flow Rate: 12 Gallons Per Minute


Manufacturer: HQUA


Product Dimensions ‏ : ‎ 37.2 x 2.5 x 2.5 inches; 8.8 Pounds


Item model number ‏ : ‎ OWS-121


Date First Available ‏ : ‎ June 10, 2019


Manufacturer ‏ : ‎ HQUA


Country of Origin ‏ : ‎ China


Best Sellers Rank: #39,260 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #100 in Under-Sink & Countertop Filtration


#100 in Under-Sink & Countertop Filtration:


Customer Reviews: 4.4 4.4 out of 5 stars 1,041 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Highly surprised and super thankful I took the chance. Great quality and awesome packing job.
Model: HQUA-OWS-12
Well, this all started about 3 weeks ago when all of a sudden my wife started getting sick. And then she started to lose her balance. We were thinking that she had a inner ear infection. Well a few days later I went to get a drink from the sink and smelled mold. I'm like what the??? We have been at this property (well water) for over 5 years, and it's always been the very best water in the entire area (admitted by my neighbors). So when I realized we had mold in our well I was shocked. We had just replaced all the plumbing including the pressure switch and pressure tank. So everything was new. So I immediately got on Amazon and started looking for a UV sterilizer. There are a lot to choose from here and most are in the $250-$400 range. I was not ready to pay this much for a UV unit and found this one with no reviews. I was very leery and put it in my list and kept looking. But after almost 4 hours of looking and reading reviews I kept coming back to this one. I finally took the chance and ordered it. I am glad I took the chance. It took two days to get it (Thanks to Prime). I was pretty apprehensive about this, as I knew that there was going to be glass involved and was even more nervous when I opened the first box to find the second one from China. My heart sank and I really thought I had just got taken. But I steadied myself and opened the next box. And this is when every bad thought that ran through my head took a flying leap. I cannot begin to tell you how well this item was packaged. I really wish I had taken the time to take some pictures but since I did not I will describe it to you. Everything is wrapped and double wrapped in heavy duty air bags and bubble wrap. The main case of the light is polished Stainless Steel and is very large ( almost 3 feet). It comes with two bulbs and one quartz protection tube. All three were wrapped with bubble wrap and then inside was three hard cardboard tubes that were also bubble wrapped inside to protect the glass. This level of protection would pretty much save this box from most of the damage it could receive during shipping. The instructions are pretty easy to understand but you need to be extra careful when putting the two gaskets on each end of the quartz tube when inserting it in the main body. Don't let them roll and twist, make sure they are flat against the metal so as to get a good seal. At first I was worried about clearances as the quartz tube gets sealed in the unit on both ends with screw on caps, but it was for not. Everything went together perfectly. Once the quartz tube is sealed up there is a hole on one end that the UV bulb slides into. Then you just hook up the ballast wire connection and slide the cap over it. I used a black zip tie to help keep out the moisture. I then hooked it up to a 3 stage filter system and let it rip. We also sterilized our well with a gallon of bleach and we let the whole thing run for two days before hooking up the filter system. Then after the filter UV system was hooked up we ran it for another full 24 hours before drinking. It was worth every penny. It has been a week now and my wife is feeling much better and the water no longer smells like mold. In fact it has no taste at all. It's clean and great to drink. We even run our swamp cooler through the UV part just to keep the evaporated water from being able to expel anything. This is a high quality UV light Sterilizer and worth every penny I paid for it. Not all come with a extra bulb and none of them come at this price with a extra bulb. The ballast unit has two lights on it, one green and the other red. These indicate the condition of the ballast and the bulb. They both stay on when everything is working right. It's nice to see at a glance that the unit is working as it should. At night you can see the UV light glow through our water hose : ) So buy with peace of mind. I did not get this item at any discount or for free. I purchased this with my own money and took a chance. Now you can buy without those issues and perhaps this seller can make a living selling a good quality product. ... show more
Reviewed in the United States on May 18, 2017 by Handy Handy

  • Instantly improved the smell of our water
Model: HQUA-OWS-12
Very quality. Compact and looks great. Easy to install and no leaks. Comes with extra bulb too
Reviewed in the United States on May 12, 2025 by Kris b.

  • It kills the bacteria for a whole year and you get extra light bulbs and it is easy to set up
Model: OWS-12T
It work really good and it helps kill the bacteria in the water before my family drinks it.
Reviewed in the United States on April 3, 2025 by Daniel cannon

  • Myexperience with product
Model: HQUA-OWS-12
I overall liked the product. It came well wrapped and had easy instructions. I was surprised by the number of water shutoff valves 5 you are supposed to install. I only had room for 4. I followed the instructions word for word and everything went well until I turned the water on. I had a small leak at the bottom fitting of the housing unit. Since my unit used soldered copper connections, I had not choice but to start over. I could not get it to stop leaking. nylon tape and pipe goop did not work. I finally figured out a solution: I had an extra wax ring for a toilet and I used some to half fill the stainless fitting. It worked like a charm. wax is perfect for toilets, so why not screw in fittings. Anyway, Overall I am pleased. ... show more
Reviewed in the United States on September 15, 2018 by Stephen Brock

  • Works great
Model: OWS-121
So far it has held up. Works great. And was pretty easy to install.
Reviewed in the United States on April 7, 2025 by Matthew Matthew

  • Broken bulb. Not a user friendly in design
Model: HQUA-OWS-12
One of the bulbs came broken. It was packed beautifully so it had to be broken at the manufacturer not during shipping, thankfully it came with 2 bulbs. I have reached out to the manufacturer 2 days ago and have not heard back yet. The design is not very user friendly. In order to plug in the bulb you need to plug it in before inserting the bulb. Otherwise you risk breaking the bulb there is no way to see if it is lined up if you don’t plug it in first. It worked out for installation but when it comes time to replace the bulb it is going to be a pain. ... show more
Reviewed in the United States on August 20, 2024 by Melissa B. Melissa B.

  • Great product
Model: HQUA-OWS-12
This is a great product. After reading the reviews we decided to purchased this UV and are very pleased. We noticed a difference in the water quality immediately. I wish we would have bought this earlier. Customer Service was very helpful when we needed it.
Reviewed in the United States on May 10, 2025 by Monika Zimmerman

  • Excellent quality, great customer service.
Model: HQUA-OWS-12
Easy to install, works great! Customer Service is excellent!
Reviewed in the United States on March 21, 2025 by GoinDownTheRoad

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