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doublehelixx | Staff 20.6K Views
Jul 21, 2025 3:07 PM

Stokk UC50 Under Sink Water Filter (Grey)

$33

$60

45% off
& Moreat Amazon
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Deal Details
Amazon has Stokk UC50 Under Sink Water Filter (Grey) on sale for $32.99. Shipping is free with Prime or orders $35+.

Alternatively, Amazon has Stokk UC50 Under Sink Water Filter (White) on sale for $35.49 or less*. Shipping is free with Prime or orders $35+.

Note: Select Accounts may have a discount coupon on the product page for the white under sink filter that may be applied to the order for additional savings. Coupon discount amounts range from roughly 15% to 25% off.

Thanks to Deal Hunter doublehelixx for finding this deal.

Product Description:
  • With a prolonged lifespan, it is recommended to replace the filter every 24 months or 26,000 gallons for optimal performance (depending on your filtered water consumption). Save over 50% on each replacement filter. Maximum water flow rate of 1.6gpm to filter a glass of water in just 3.5 seconds, meeting your household's need for high-quality water. Suitable for kitchen, bathroom, RV, or office and so on
  • Stokk 0.5μm filtration system effectively reduces various impurities, including PFAS, PFOA, PFOS, fluorides, chlorides, sand, particulates and more, while retaining all essential minerals
  • Made from high-quality, BPA-free and lead-free materials. Against from NSF/ANSI 53& 42 American National Standard, tested and certified by SGS to effectively eliminate the hidden risks of tap water. The Cartridage filter is Tested and Certified by NSF International against NSF/ANSI 42 & 372. Scan the QR for SGS online test report
  • Stokk under counter water filter is a breeze and can be done in just 3 minutes. The filter element adopts a twist-and-pull design and can be replaced within 2 seconds. Note: Be sure to fully insert the hose during installation. Failure to fully insert the hose during installation may result in it coming loose and causing water leaks during use
  • Our filter is made from natural carbon fiber, preventing clogs while offering higher filtration efficiency and faster water flow rates. With a longer lifespan and less frequent replacement, it reduces long-term costs, making it an excellent choice for any household
  • Stokk under sink water filtration system adapts a composite filter technology, combining pre-activated carbon filter and post carbon filter to effectively reduce odor and chloride. The unique Coconut-shell activated carbon filter further absorbs odors and residual chlorine, makes it more purer, fresher
  • Choose Stokk's world-class water filtration solutions and US-based customer support for worry-free purchasing and after-sales support. If you're not satisfied with your purchase, feel free to contact our after-sales team and water specialists for free technical support

Editor's Notes

  • About this Deal:
    • While supplies / offer lasts.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Store:

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Stokk UC50 Under Sink Water Filter (Grey) on sale for $32.99. Shipping is free with Prime or orders $35+.

Alternatively, Amazon has Stokk UC50 Under Sink Water Filter (White) on sale for $35.49 or less*. Shipping is free with Prime or orders $35+.

Note: Select Accounts may have a discount coupon on the product page for the white under sink filter that may be applied to the order for additional savings. Coupon discount amounts range from roughly 15% to 25% off.

Thanks to Deal Hunter doublehelixx for finding this deal.

Product Description:
  • With a prolonged lifespan, it is recommended to replace the filter every 24 months or 26,000 gallons for optimal performance (depending on your filtered water consumption). Save over 50% on each replacement filter. Maximum water flow rate of 1.6gpm to filter a glass of water in just 3.5 seconds, meeting your household's need for high-quality water. Suitable for kitchen, bathroom, RV, or office and so on
  • Stokk 0.5μm filtration system effectively reduces various impurities, including PFAS, PFOA, PFOS, fluorides, chlorides, sand, particulates and more, while retaining all essential minerals
  • Made from high-quality, BPA-free and lead-free materials. Against from NSF/ANSI 53& 42 American National Standard, tested and certified by SGS to effectively eliminate the hidden risks of tap water. The Cartridage filter is Tested and Certified by NSF International against NSF/ANSI 42 & 372. Scan the QR for SGS online test report
  • Stokk under counter water filter is a breeze and can be done in just 3 minutes. The filter element adopts a twist-and-pull design and can be replaced within 2 seconds. Note: Be sure to fully insert the hose during installation. Failure to fully insert the hose during installation may result in it coming loose and causing water leaks during use
  • Our filter is made from natural carbon fiber, preventing clogs while offering higher filtration efficiency and faster water flow rates. With a longer lifespan and less frequent replacement, it reduces long-term costs, making it an excellent choice for any household
  • Stokk under sink water filtration system adapts a composite filter technology, combining pre-activated carbon filter and post carbon filter to effectively reduce odor and chloride. The unique Coconut-shell activated carbon filter further absorbs odors and residual chlorine, makes it more purer, fresher
  • Choose Stokk's world-class water filtration solutions and US-based customer support for worry-free purchasing and after-sales support. If you're not satisfied with your purchase, feel free to contact our after-sales team and water specialists for free technical support

Editor's Notes

  • About this Deal:
    • While supplies / offer lasts.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Store:

Original Post

Community Voting

Deal Score
+16
Good Deal

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22 Comments

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Jul 21, 2025 7:06 PM
100 Comments
Joined Sep 2023
EagerPen5243Jul 21, 2025 7:06 PM
100 Comments

Our community has rated this post as helpful. If you agree, why not thank

I know a bit about these kinds of water filters. I'd highly recommend paying premium for the CuZn UC-200. 5 year warranty, helpful customer service. Made in USA. These are okay but the connection points are probably crap.
1
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6
Jul 21, 2025 7:24 PM
26 Comments
Joined Mar 2016
mr_smashy_pantsJul 21, 2025 7:24 PM
26 Comments
Deleted comment
Last edited by mr_smashy_pants July 21, 2025 at 12:28 PM.
1
Jul 21, 2025 7:25 PM
26 Comments
Joined Mar 2016
mr_smashy_pantsJul 21, 2025 7:25 PM
26 Comments
Quote from EagerPen5243 View quoted comment :
I know a lot about these kinds of water filters. I'd highly recommend paying premium for the CuZn UC-200. 5 year warranty, helpful customer service. Made in USA. These are okay but the connection points are probably crap.
Does the CuZn UC-200 have NSF certification?

I wasn't able to find any on their website.
Jul 21, 2025 7:28 PM
100 Comments
Joined Sep 2023
EagerPen5243Jul 21, 2025 7:28 PM
100 Comments
Quote from mr_smashy_pants View quoted comment :
Does the CuZn UC-200 have NSF certification?I wasn't able to find any on their website.
Hmmm I'm getting some conflicting results. I'd email the customer support to ask for an official statement.
Jul 21, 2025 7:57 PM
26 Comments
Joined Mar 2016
mr_smashy_pantsJul 21, 2025 7:57 PM
26 Comments

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Quote from EagerPen5243 View quoted comment :
Hmmm I'm getting some conflicting results. I'd email the customer support to ask for an official statement.
In general, if someone meets it, you bet that they will advertise it.

NSF has a reverse lookup for each standard. You can search which manufacturers met it.

The Stokk says it meets NSF, but it is helpful to cross verify that as well. I don't have the time to confirm.

The CuZn looks nice but I'm not sure what they're certain are other than WQA.

I could be wrong, but I believe WQA is a pay to play organization. You just pay the membership fee. I'm not aware that you have to submit or meet tests, like NSF and ASTM requires you to. Also some companies claim to meet NSF, but it's actually only for the components. Like they will meet am mad standard for the fittings and fasteners, but not for the actual filtration.

So from my perspective I'll always go with the NSF certified products for water/food. A company that is transparent and willing to go through the effort and cost of certifying their product gives me peace of mind.
3
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Jul 22, 2025 6:08 PM
6.2K Comments
Joined Dec 2008
regcustomer88Jul 22, 2025 6:08 PM
6.2K Comments
Is this very much like "Filtrete Maximum Under Sink Water Filtration System 3US-MAX-S01". anyone know how it compares?
Jul 22, 2025 7:03 PM
407 Comments
Joined Dec 2007
James MasonJul 22, 2025 7:03 PM
407 Comments

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My neighbor had this crap. Woke up one morning and the press-in hose fittings came out and flooded his kitchen. BUY one with screw in fittings.
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Jul 22, 2025 10:37 PM
4.3K Comments
Joined May 2006
ArcticatJul 22, 2025 10:37 PM
4.3K Comments
Quote from mr_smashy_pants View quoted comment :
Does the CuZn UC-200 have NSF certification?

I wasn't able to find any on their website.

CuZn's UC-200 Series under sink water filters are NSF/ANSI 42&372 certified. Featuring industry leading filtration performance, legendary lifetime warranty support and are without question the best value on the market.
2
Jul 22, 2025 10:46 PM
309 Comments
Joined Jan 2012
deallainomoreJul 22, 2025 10:46 PM
309 Comments
how this compare to Reverse Osmosis Water Filter Systems
Jul 22, 2025 11:03 PM
408 Comments
Joined Dec 2007
bobdobJul 22, 2025 11:03 PM
408 Comments
I'll never understand why people buy all these proprietary filters instead of a standard 10" housing. Then you can get exactly the filters you want, know what it is doing and how well it is performing. This sounds like a standard 5 micron carbon block filter which is decent for most public water supplies. Or you can upgrade to a brand name filter like Matrikx Chloraguard.
1
Jul 22, 2025 11:04 PM
41 Comments
Joined Jun 2017
neonredracer21Jul 22, 2025 11:04 PM
41 Comments
New to these filters and the idea of owning/using one. So if this is only connected to the cold water side, it will only be filtering the cold water. If your faucet isn't turned all the way to cold, that could mean unfiltered water is being mixed in with the filtered? Thinking of my kitchen sinks and the single faucet that controls both hot and cold from one handle.
Jul 22, 2025 11:14 PM
551 Comments
Joined Jan 2004
stevoJul 22, 2025 11:14 PM
551 Comments
Quote from mr_smashy_pants View quoted comment :
Does the CuZn UC-200 have NSF certification?

I wasn't able to find any on their website.
Call them if you have any questions, stateside support and often it's their engineers who answer the phone. Cool company.
Jul 23, 2025 12:09 AM
1.2K Comments
Joined Feb 2017
theshopper2022Jul 23, 2025 12:09 AM
1.2K Comments

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Quote from neonredracer21 View quoted comment :
New to these filters and the idea of owning/using one. So if this is only connected to the cold water side, it will only be filtering the cold water. If your faucet isn't turned all the way to cold, that could mean unfiltered water is being mixed in with the filtered? Thinking of my kitchen sinks and the single faucet that controls both hot and cold from one handle.
You shouldn't use the hot water for consumption if you have a water tank. Most anode rods are aluminium and all the sediment that builds up is nasty. Use cold water and heat it up.
1
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Jul 23, 2025 12:19 AM
2.2K Comments
Joined Dec 2005
nohomers1Jul 23, 2025 12:19 AM
2.2K Comments

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Quote from neonredracer21 View quoted comment :
New to these filters and the idea of owning/using one. So if this is only connected to the cold water side, it will only be filtering the cold water. If your faucet isn't turned all the way to cold, that could mean unfiltered water is being mixed in with the filtered? Thinking of my kitchen sinks and the single faucet that controls both hot and cold from one handle.
Yes, only the cold is filtered. It would be a waste to filter hot water used for cleaning, dishwasher, etc.

Keep in mind that you should not be drinking hot water from the tap (unless you have a tankless water heater)
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Jul 23, 2025 2:18 AM
268 Comments
Joined Nov 2013
LacidiousJul 23, 2025 2:18 AM
268 Comments
This one is only $28 with coupon. https://a.co/d/aHd8YMg

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