HQUA-TWS-121 120V 55W 12GPM 1“ MNPT Inlet/Outlet, Whole House Ultraviolet Water Purifier Filter, + 1 Extra UV Bulb, + 1 Extra Quartz Sleeve
Condition: New
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Availability:
In Stock.
Arrives
Thursday, Jun 19
Size: 1" MNPT
Features
- 12GPM 55W 21 inch long and 3.5 inch diameter. MNPT Inlet/Outlet: 1" Inch
- NEW DESIGN. Idea from BIg Blue. Smaller Size, Easier to Install and integrate into the pipe system.
- No Secondary Pollution. No change in taste, odor, pH or conductivity nor the general chemistry of the water.
- 9000 hours Life of UV bulb. Efficiency Purification: Reduce 99.99% microorganism.
- Professional manual book are contained. Installation, maintenance, troubleshooting are easy to finish with that.
Brand: HQUA
Special Feature: Ultraviolet
Product Dimensions: 21"L x 3.5"W x 3.5"H
Package Information: Tube
Installation Type: Mounting
Power Source: Ac
Model Name: TWS-121
Lower Temperature Rating: 32 Degrees Fahrenheit
Maximum Flow Rate: 12 Gallons Per Minute
Upper Temperature Rating: 122 Degrees Fahrenheit
Product Dimensions : 21 x 3.5 x 3.5 inches; 10.5 Pounds
Item model number : TWS-121
Date First Available : September 17, 2023
Manufacturer : HQUA
Country of Origin : China
Best Sellers Rank: #32,105 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #72 in Under-Sink & Countertop Filtration
#72 in Under-Sink & Countertop Filtration:
Customer Reviews: 4.4 4.4 out of 5 stars 453 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jun 19
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 3/4" MNPT
Had it running for 11 months when I noticed the ballast LED wasn’t on. Checked a few things, ballast had gone bad at some point. They have a 12 month warranty, so I contacted them and holy crow they got back fast! Had a new ballast in 3 days! Very very happy with both the products initial cost, build quality and now real support. They stand behind what they sell
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Reviewed in the United States on March 20, 2025 by Butch
Size: 3/4" MNPT
This is a great product. It can be installed horizontally or vertically. Direction Flow doesn’t matter and it’s all stainless connections. Use thread tape and pipe sealant on top of that and you’ll never have a leak. Make sure you sandwich the o rings on both ends together really snug with your fingers, around the tube, use the silicone to help it slide on the tube, then tighten down fitting, it’s perfect and no leak. Remember to use about 8-10” of a metal pipe (not pex or plastic) before and after inlets. I used 3/4” flexible water heater hook ups to connect. Great system looks like a nitrous bottle, the stainless is beautiful. Well built product and easy to use and clean.
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Reviewed in the United States on January 16, 2025 by RadMan RadMan
Size: 3/4" MNPT
Yearly maintenance consists of changing the UV tube and cleaning the quartz tube. Remove the old UV tube and put aside. Next, following the instructions, shut off the water to the unit, drain that loop and remove the gasketing rings on each end. Remember that gloves must be worn when handling quartz glass as hand oil will eat at them. Remove the tube and clean it, as per the instructions. I have clean softened water so the outside of the tube was fine. What the instructions don't cover is that the UV bulb heat causes outgassing of the plastic guard on the tube...which puts a film on the INSIDE of the tube (like the film on the inside of your car windshield). How to clean it, the instructions don't say. HINT #1: Get a 24" claw mechanic's pickup tool like this: www.amazon.com/ALINNA-Flexible-Grabber-Bendable-Reaching/dp/B098F3VWDV/ and a piece of paper towel. Gather a dry piece of the towel up in a LOOSE wad with the pickup tool and gentle feed it down the quartz tube, turning it gentle to wipe the inside of the tube. Gently pull it out. Now reassemble the tube in the filter house and reseal it with the o-rings and collars. Put on the gloves if you haven't and feed the new tube in. Now HINT #2: You have to unplug the ballast and replug it after connecting the UV tube to the ballast 4 conductor connector. If you never unplug the ballast before connecting the new lamp, it won't come on. Hope this helps. My original review, a year ago...this still holds.=================================== I've been a professional mechanical contractor. The gear was was well made and straightforward to install. The one item damaged in shipment was replaced cheerfully and immediately; they even gave me two in place of the one busted one. That's service and customer attention!
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Reviewed in the United States on August 30, 2023 by Amazon Customer Amazon Customer
Size: 3/4" MNPT
First off, the unit works great. Had the water tested before and after, and the bacteria is gone. I have two issues with the unit. First, the in and out ports are not labeled. Are they reversible? I don't know. The instructions don't make it any clearer. One pictures shows the inlet nearest to the UV tube, the other shows it on the one further away. I resorted to looking at all the pictures here to figure it out. Which brings me to the second issue. Looking at all these pictures, most people are plumbing it directly with PEX, which was my plan. However in scouring the instructions to figure out the issue above, I found a note that the UV unit must be installed with 5" of metal pipe at the inlet and outlet, to prevent overheating and degrading the PEX, releasing chemicals into the water. I had to run out and get fittings and pipe in order to do that, and it really changed the whole layout, needing 10 extra inches of space. Both of these issues could be more clear in the instructions, and also in the product description. Clearly a lot of people are either missing the proper way to install it, or just don't care.
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Reviewed in the United States on August 16, 2023 by Steve
Size: 3/4" MNPT
Install went smooth, but maybe a month and half later I developed a leak around the top gasket, where the top of the light connects. I noticed a really tiny nut, which I tightened. I am not sure how long this will hold though, the gasket kind of looks crooked since I tightened down on the one side. Ill post a pic later. UPDATE: all I had to do was reseat the rubber seal on the bulb housing. So glad it was a simple fix. Their customer service responded very quickly too.
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Reviewed in the United States on November 28, 2024 by connor shea connor shea
Size: 3/4" MNPT
Compact, ideal for our small cabin, this UV filter is a perfect fit. Installation was simple and instructions were clear. I would advise use of a good grade of pipe sealant instead of Teflon plumbing tape that is recommended. There are some difficult threads to reach with tape. The water tested safe to drink. Peace of mind is worth a 5 star rating in itself.
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Reviewed in the United States on December 24, 2024 by Rusty Rusty