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tunabreath 9.2K 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

Community Voting

Deal Score
+42
Good Deal
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Top Comments

SlickRickardo
261Comments
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.
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16 Comments

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Yesterday 1:20 AM
55 Comments
Joined Dec 2011

This comment has been rated as unhelpful by Slickdeals users.

Yesterday 2:06 AM
370 Comments
Joined Oct 2022
Cheap_MoFoYesterday 2:06 AM
370 Comments
Is that a uterus?
1
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4
Yesterday 4:02 AM
261 Comments
Joined Dec 2013
SlickRickardoYesterday 4:02 AM
261 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
Pro
Yesterday 12:52 PM
13.8K Comments
Joined Aug 2008
Slimeyface
Pro
Yesterday 12:52 PM
13.8K Comments
Quote from Cheap_MoFo View quoted comment :
Is that a uterus?

Yes, the ultimate life filtration unit
2
Yesterday 2:29 PM
2.1K Comments
Joined Dec 2006
danny31004Yesterday 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.
1
Pro
Deal Hunter
Yesterday 7:19 PM
12.8K Comments
Joined Apr 2019
itsamazelingYesterday 7:19 PM
Pro
Deal Hunter
12.8K 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
Yesterday 8:57 PM
228 Comments
Joined Feb 2026
FabulousLake7974
Pro
Yesterday 8:57 PM
228 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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Yesterday 9:21 PM
79 Comments
Joined Nov 2013
HarryDresdenYesterday 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.
Yesterday 9:21 PM
606 Comments
Joined Feb 2006
xxxYesterday 9:21 PM
606 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.
Yesterday 9:37 PM
234 Comments
Joined Nov 2010
theicetigerYesterday 9:37 PM
234 Comments
only lasted a month for me before water pressure became a drip
Yesterday 9:39 PM
301 Comments
Joined Aug 2008
mferYesterday 9:39 PM
301 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.
Yesterday 10:00 PM
423 Comments
Joined Jan 2021
BeautifulLake409Yesterday 10:00 PM
423 Comments
How's it compare to a Brita pitcher filter?
Yesterday 10:17 PM
222 Comments
Joined Feb 2022
PurpleWealth332Yesterday 10:17 PM
222 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.
Yesterday 11:13 PM
1.4K Comments
Joined Feb 2020
GreySwing658Yesterday 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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Today 1:12 AM
7 Comments
Joined Dec 2015
splmonteToday 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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