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tunabreath 25.2K Views
Sep 18, 2026 11:22 PM

Waterdrop 10UA NSF/ANSI 42 Under-Sink Water Filtration System w/ 12-Mo Filter

$38

$56

32% off
+ Free S&Hat Amazon
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Deal Details
Waterdrop Filtration Tech via Amazon has Waterdrop 10UA NSF/ANSI 42 Under-Sink Water Filtration System (WD-10UA) on sale for $37.99. Shipping is free.

Thanks to Community Member tunabreath for sharing this deal.

About this product:
  • Under-sink filtration system connects directly to your existing faucet
  • NSF/ANSI 42 certified for municipal cold-water applications
  • Up to 12-month filter life with quick twist-and-lock replacement
  • Push-connect fittings support fast, compact under-sink installation
  • Designed to reduce unwanted taste, odor, and listed contaminants
  • Tested full flow rate of 0.75 gpm at 60 psi with upgraded 3/8" outlet reaching 1.33 gpm

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • Our research indicates that this deal is $19 less (33% savings) than the next best available price from a reputable merchant with prices starting from $56.99 at the time of this post.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by tunabreath
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Waterdrop Filtration Tech via Amazon has Waterdrop 10UA NSF/ANSI 42 Under-Sink Water Filtration System (WD-10UA) on sale for $37.99. Shipping is free.

Thanks to Community Member tunabreath for sharing this deal.

About this product:
  • Under-sink filtration system connects directly to your existing faucet
  • NSF/ANSI 42 certified for municipal cold-water applications
  • Up to 12-month filter life with quick twist-and-lock replacement
  • Push-connect fittings support fast, compact under-sink installation
  • Designed to reduce unwanted taste, odor, and listed contaminants
  • Tested full flow rate of 0.75 gpm at 60 psi with upgraded 3/8" outlet reaching 1.33 gpm

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • Our research indicates that this deal is $19 less (33% savings) than the next best available price from a reputable merchant with prices starting from $56.99 at the time of this post.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by tunabreath

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Top Comments

danny31004
2.1KComments
227Reputation
I bought this for the upstairs bathroom sink and changed to the biggest filter the following year. Easy to change and beats going downstairs for water in the middle of the night.
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SlickRickardo
262Comments
48Reputation
Not sure why this is a joke. I've used this for 5+ years while replacing the filter once a year. Never had weak pressure or have anything break.With that said, there are a lot of variables. I have few people in the house, a water softener, pretty good water from the city, etc. $30 filter was the better choice than a loud RO or something more expensive.
Go to Comment

Community Reviews

This under sink filter is best for improving everyday tap water taste and convenience at the sink, especially for drinking, cooking, and filling pots or pitchers. It is easy to replace, can run for years in the right setup, and fits well for setups with a dedicated filtered spout or multiple sinks. Pressure is the main tradeoff, since flow can drop noticeably, clog after idle periods, or even fail in high pressure systems without a regulator. It also does not address lead if the plumbing is the source.

Common Questions (5)

AI-generated summary based on comments from the community. Updated ago

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35 Comments

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Sep 19, 2026 1:20 AM
59 Comments
Joined Dec 2011

This comment has been rated as unhelpful by Slickdeals users.

Sep 19, 2026 2:06 AM
375 Comments
Joined Oct 2022
Cheap_MoFoSep 19, 2026 2:06 AM
375 Comments
Is that a uterus?
1
23
5
Sep 19, 2026 4:02 AM
262 Comments
Joined Dec 2013
SlickRickardoSep 19, 2026 4:02 AM
262 Comments

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

Quote from Gremace View quoted comment :
This thing is a joke don't expect good water pressure or it to actually last a year but that really depends on what you're trying to filter I guess
Not sure why this is a joke. I've used this for 5+ years while replacing the filter once a year. Never had weak pressure or have anything break.With that said, there are a lot of variables. I have few people in the house, a water softener, pretty good water from the city, etc. $30 filter was the better choice than a loud RO or something more expensive.
1
1
Sep 19, 2026 12:52 PM
14K Comments
Joined Aug 2008
SlimeyfaceSep 19, 2026 12:52 PM
14K Comments
Quote from Cheap_MoFo View quoted comment :
Is that a uterus?

Yes, the ultimate life filtration unit
2
3
Sep 19, 2026 2:29 PM
2.1K Comments
Joined Dec 2006
danny31004Sep 19, 2026 2:29 PM
2.1K Comments

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

I bought this for the upstairs bathroom sink and changed to the biggest filter the following year. Easy to change and beats going downstairs for water in the middle of the night.
3
Pro
Deal Hunter
Sep 19, 2026 7:19 PM
13.1K Comments
Joined Apr 2019
itsamazelingSep 19, 2026 7:19 PM
Pro
Deal Hunter
13.1K Comments
Quote from SlickRickardo View quoted comment :
Not sure why this is a joke. I've used this for 5+ years while replacing the filter once a year. Never had weak pressure or have anything break.With that said, there are a lot of variables. I have few people in the house, a water softener, pretty good water from the city, etc. $30 filter was the better choice than a loud RO or something more expensive.
I have this and same variables as you and it has been a game changer in my house.
Pro
Sep 19, 2026 8:57 PM
453 Comments
Joined Feb 2026
ChampionX
Pro
Sep 19, 2026 8:57 PM
453 Comments
Quote from danny31004 View quoted comment :
I bought this for the upstairs bathroom sink and changed to the biggest filter the following year. Easy to change and beats going downstairs for water in the middle of the night.
I was thinking of using this in a similar way

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Sep 19, 2026 9:21 PM
79 Comments
Joined Nov 2013
HarryDresdenSep 19, 2026 9:21 PM
79 Comments
Quote from SlickRickardo View quoted comment :
Not sure why this is a joke. I've used this for 5+ years while replacing the filter once a year. Never had weak pressure or have anything break.With that said, there are a lot of variables. I have few people in the house, a water softener, pretty good water from the city, etc. $30 filter was the better choice than a loud RO or something more expensive.
I put one of these on one faucet so we can not drink the stinky town water. Works great.
Sep 19, 2026 9:21 PM
608 Comments
Joined Feb 2006
xxxSep 19, 2026 9:21 PM
608 Comments
Price history says that it's this price for a few days each month. Don't think it's slick. I use the CuZn UC-200 filter that's $120 and lasts five years.
Sep 19, 2026 9:37 PM
235 Comments
Joined Nov 2010
theicetigerSep 19, 2026 9:37 PM
235 Comments
only lasted a month for me before water pressure became a drip
Sep 19, 2026 9:39 PM
302 Comments
Joined Aug 2008
mferSep 19, 2026 9:39 PM
302 Comments
Quote from Gremace View quoted comment :
This thing is a joke don't expect good water pressure or it to actually last a year but that really depends on what you're trying to filter I guess
Exactly, the water pressure is really bad.
Sep 19, 2026 10:00 PM
443 Comments
Joined Jan 2021
BeautifulLake409Sep 19, 2026 10:00 PM
443 Comments
How's it compare to a Brita pitcher filter?
1
1
Sep 19, 2026 10:17 PM
233 Comments
Joined Feb 2022
PurpleWealth332Sep 19, 2026 10:17 PM
233 Comments
I've had for a year on kitchen sink and it works great. Our water is clean but this makes it taste cleaner. It is fantastic for filling pots and my zero filter I use for my espresso machine.
1
Sep 19, 2026 11:13 PM
1.4K Comments
Joined Feb 2020
GreySwing658Sep 19, 2026 11:13 PM
1.4K Comments
I bought this for the kitchen. Cooking and cleaning fruit but not drinking. It seems to be way better quality for those purposes but I remember getting this for $26 or $28 so not sure about this deal being the best but it's really worth it to me even at full price.

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Sep 20, 2026 1:12 AM
7 Comments
Joined Dec 2015
splmonteSep 20, 2026 1:12 AM
7 Comments
Quote from Gremace View quoted comment :
This thing is a joke don't expect good water pressure or it to actually last a year but that really depends on what you're trying to filter I guess
I had so much water pressure through mine I had to put a regulator in to stop it from flooding my ice machine.

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