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Waterdrop TSU 0.01μm Ultra-Filtration Under Sink Water Filter System, 3-Stage Tankless Undersink Water Filtration with Faucet, Smart Panel, No Waste Water, No Electricity Required, Does not Lower TDS

  • Based on 2,289 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Monday, Jun 30
Order within 7 hours and 50 minutes
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Color: Brushed Nickel


Size: 0.01μm


Features

  • Save Water & Keep Minerals: This under sink water filter system reduces 30+ substances, and retains essential minerals in the water. No wasted water, no need for power source, and no pressure drop. Note: This under sink water filtration system will NOT REDUCE TDS.
  • Taste the Difference in Our Water: 0.01 micron Waterdrop Ultrafiltration Membrane, this under sink water filtration system filters chlorine, PFAS, taste, odor and heavy metals, offering enhanced taste.Buying bottled water 5 gallons at a time is costly and problematic, no more big bottles of water on your counter.
  • Smart Lifespan Reminder: Sleek black panel with four lights indicates will tell you when to change the filters.
  • 24 Month Filter Lifespan: UF filter with a 24-month lifespan reduces replacement frequency, minimizing long-term maintenance costs.CT filter 12 months,PP filter 6 months.
  • Slim & Space-Saving: Dimensions of 4.68"W x 13.97"H x 14.81"L fit small spaces, suitable for cabinets even with a large food disposal taking up a lot of space.
  • Easy Installation: everything needed to install filter is included in the box,this under sink water filter accommodates both 1/2" and 3/8" under sink water pipes.
  • Premium Nickel Faucet: High-quality brushed nickel faucet adds elegance and durability to your kitchen.
  • Certified Safe Materials: IAPMO NSF/ANSI 372 certified for food-grade lead-free, BPA-free construction.
  • Eco-Friendly Operation: No wastewater, no drain line needed, making it an environmentally conscious choice.
  • Reliable Support: Enjoy peace of mind with our comprehensive after-sales service. Contact our brand anytime during installation or use for prompt assistance, ensuring a worry-free experience.

Brand: Waterdrop


Special Feature: 0.01μm Ultra-Filtration, Space-Saving & Easy to Install, Smart Lifespan Reminder, Advanced Integrated Waterways Prevent Leakage See more


Product Dimensions: 14.81"L x 4.68"W x 13.97"H


Package Information: Box


Installation Type: Under Sink


Power Source: Corded Electric


Upper Temperature Rating: 100 Degrees Fahrenheit


UPC:


Manufacturer: Waterdrop


Product Dimensions ‏ : ‎ 18.39 x 6.38 x 18.62 inches; 13.9 Pounds


Item model number ‏ : ‎ WD-TSU-W


Batteries ‏ : ‎ 3 AA batteries required. (included)


Date First Available ‏ : ‎ February 12, 2020


Manufacturer ‏ : ‎ Waterdrop


Best Sellers Rank: #9,266 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #17 in Under-Sink & Countertop Filtration


#17 in Under-Sink & Countertop Filtration:


Customer Reviews: 4.4 4.4 out of 5 stars 2,289 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 30

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


  • Great tasting water doesn’t change PPM
Color: Brushed Nickel Size: 0.01μm
Just got our unit and installed it which was super easy only took me like 20-30 minutes overall to get it done, after letting the unit run for its 10 minutes on first go to flush out all the sand and filter particles the water was crystal clear and the taste was great. I see allot of reviews here with people using PPM readers seeing the water is still high with numbers that’s because this is not a “reverse osmosis” filtering system it’s a “osmosis” filtering system which means it does. It change the TDS which would affect the parts per million (PPM) because it’s leaving all the minerals in the water. If you are looking for something the lower your PPM this is not the system for you because it’s leaving all the minerals in the water which is a good thing in most instances but you will want a reverse osmosis system to lower the PPM which removes everything from the water leaving you with strait up H2O to the best of it’s capability. Liking it so far we’ll see if I run into filter removal issues down the road that’s others have stated so far. Lol ... show more
Reviewed in the United States on May 4, 2025 by Amazon Customer

  • Delicious water 💦
Color: Brushed Nickel Size: 0.01μm
Had installed this in a diff apt unit and decided to get one myself. I have been using the countertop Brita system for a couple years.. it worked fine but constantly having to refill the container became a hassle. I’m only one person and it needed refilling 2-3 times a day. The Waterdrop system’s water is delicious and has cleared much need counter space. I will have to replace 3 filters but that’s pretty standard. ... show more
Reviewed in the United States on June 5, 2025 by ljnaka

  • Great water system
Color: Brushed Nickel Size: 0.01μm
Put this in our RV, didn't take up too much space and have a clean water right at my sink. No water bottles, or water containers to clean the water or gallons of water around. Absolutely love the system.
Reviewed in the United States on June 8, 2025 by Tammy Williams

  • Easy install great flow rate
Color: Brushed Nickel Size: 0.01μm
The best investment have made so far! Very good filter and the flow rare also great as well , very easy to install!
Reviewed in the United States on June 17, 2025 by Great support

  • Pretty solid water filtration unit
Color: Matte Black Size: 0.01μm
I was a little skeptical about purchasing such an expensive water filter for my kitchen sink, even on a limited deal for $30 off, but I had tried some of the single filters, and they didn’t seem to connect right, leaving water leaks, and the refrigerator dispenser doesn’t have enough flexibility while also being in front of the ice dispenser, which always makes me accidentally hit it. This was simple enough to install; however, the directions are super confusing so I suggest you watch a YouTube video on how to install it like I did. All you need to do is type “installation instructions for…. (Insert product name here)” on google and the manufacturer installation guide is the first video that pops up. It’s helpful to see how the rings are attached because the paper instructions are garbage with diagrams that don’t really label anything and only vague written instructions. This water filter also came equipped with everything you need for setup, minus the wrench. It even included a water diverter/tee for the cold water line pre-installed on the line and two sets of plumbers tape. My suggestion is that you tighten the valve/diverter right at the cold water line more than you think you need to as just the simple hand tightening and a quarter turn with the wrench won’t do it for this one and you’ll have leaks when you open the line back up. I already had a different faucet installed, but the connection for the outlet water seems to be universal and you don’t have to use the included faucet if you don’t want to. I couldn’t find just the water filtration system as a stand-alone item, so it seems to only come with the faucet. I don’t like that because it drives the price up for an extra item I don’t need, but I digress. After you install the filter, make sure to run it for a little bit to clear the line. If you try to grab a drink within the first few minutes of use, you’ll end up with charcoal in your water from the filters. I don’t know if it’s the faucet I used or the unit but the water pressure is actually pretty great coming out of the line and fills my water bottles up very quickly. It maybe takes 10 seconds to get 20 oz of water in my Stanley. It’s much quicker than our Whirlpool fridge dispenser and adjustable so you can move it to the precise location you need without taking the lids off your bottles. I see other reviews mentioning and showing videos of the PPE levels coming out of the filtered water, which are close to tap water, and this had me concerned. I did some research and this is not a reverse osmosis filter, so the minerals remain in the water, closely resembling tap. I didn’t want to go through all the hoopla of getting a reverse osmosis water filter because then you have water waste as well as needing an outlet to plug in the unit and drilling holes in the drain pipes for waste water. I have an outlet under the sink for our garbage disposal but everything else just seemed like sooooooooo much extra work. This unit was able to be set up in less than 10 minutes with the filter faucet already being installed. If I had to do that, it would have taken me maybe 5 more minutes. This unit is simple and efficient, with the water tasting much better than with the single filter or from the fridge. All in all, this is a pretty solid little water filtration system and I’m happy with it but only time will tell if it has longevity/durability. I’ll be sure to update my review should something go awry or the unit fails, but for now, it gets 4 stars from me. ... show more
Reviewed in the United States on June 19, 2025 by KB

  • Game-Changer for Clean, Great-Tasting Water !
Color: Brushed Nickel Size: 0.01μm
We’ve been using the Waterdrop TSU system for a few months now, and I’m seriously impressed. The installation was surprisingly easy (at least my husband swearing was minimal), and the compact design fits perfectly under our sink without taking up much space. The best part? The water tastes amazing—no weird aftertaste or chlorine smell. The flow is great. I love that it filters out all the stuff I don’t want my family drinking, but without wasting water like some RO systems. The twist-and-lock filter replacements are super simple, too. Totally worth the investment if you want cleaner, safer water at home without the hassle ... show more
Reviewed in the United States on May 10, 2025 by alex

  • DO NOT BUY!!!!
Color: Brushed Nickel Size: 0.01μm
I’d been drinking bottled water for 2 months since moving into a new home & was sick of lugging bottles. So I bought this unit & had a professional plumber install. We let it run for 10 min, 3 times before drinking. It didn’t taste good. So the next day I again ran for 10 min 2x. Still tasted lousy. Like really bad. After drinking for a week, I got sick with digestive issues. So I bought a good quality meter to check bc it. It gave the same reading as my tap water! And I live in an area where tapwater is unsafe to drink! So this stupid machine was making me ill. I’m so angry at them for selling this piece of crap, which has been hazardous to my health! Besides the $150 for the machine & another $150 to have installed, I am out! As I’m unable to uninstall myself returning will cost me even more!!!! Shown is today’s PPL reading, after over a week of running it 10 min 2-3 dif times daily. I’ve never gotten a reading under 550!!! It’s always between 550 & 600 and about the same as the tap daily, so it’s doing NOTHING! It measure Crystal Gyser at 87. Distilled at 0, so the meter is accurate. Will get different water than Crystal Gyser too, as 87 is too high for bottled water. The glasses were clean each time I tested the water. ... show more
Reviewed in the United States on May 20, 2025 by JupiterGirl JupiterGirl

  • 2 years and going strong!
Color: Brushed Nickel Size: 0.01μm
Replacement filters easy to find and last a long time. Water tastes clean. Very happy with this product!
Reviewed in the United States on June 16, 2025 by Gail

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