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Availability:
In Stock.
Arrives
Nov 3 – Nov 4
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At a glance
- Condition
- New
- Set
- 15UA
- Model
- WD-15UA
- Capacity
- 19000 gal
- Dimensions
- 3.9"L x 3.6"W x 16.7"H
- Weight
- 1.63 kg
- Material
- NSF/ANSI Approved Components
- In the box
- System×1 ·hose×2 ·3/8"–1/2" Convertor set×1 ·screws×2 ·Teflon tape×1
- Warranty
- 1 Year Manufacturer
Features 8
- Ultra-Long Service Life: When used with municipal water, each under sink water filtration system has a maximum service life of 24 months.[1]Before going on vacation, please put the filters in separate sealed plastic bags, and store the bags in your refrigerator (NOT the freezer) to keep it fresh in 30 days. It is specifically designed for municipal tap water and can only be used with cold water sources.It is not suitable for well water or hot water.
- Innovative Multistage Filtration: The Waterdrop Direct Connect under sink water filtration system uses innovative multistage filtration. It can effectively reduce PFOA/PFOS, lead, chlorine, heavy metals, chemical impurity, sediment and other large particles.[2] Enjoy pure water straight from your tap no need to buy bottled water anymore.
- Solve Clogging Problem:By upgrading the filtration area, our filter now provides a 20X increase in dirt adhesion area, enhancing filtration capability while minimizing the risk of clogging. This design is suitable for long-term use in undersink water filter systems.
- IAPMO Certified Filter: Made from premium BPA-free and lead-free materials, the under sink water filter is certified by IAPMO against NSF/ANSI 372 Standard. Certified by IAPMO against NSF/ANSI 42 Standard, the water filter can effectively reduce chlorine, taste and odor. To look over the 42 & 372 certification, please search "WD-15UA" on the IAPMO website.
- Easy Installation: No professional installation or plumber is required for this under sink water filter. The system connects to cold water only and installs in less than 3 minutes with push-to-connect fittings. The filter can be replaced in 3 seconds. Includes a 3/8 direct-connect hose for standard 3/8 feed water valves under US sinks, plus a 3/81/2 converter fitting for both 1/2 and 3/8 cold water lines and faucets.
- Fast Flow Rate & Multiple Uses: The fast and stable water supply provides pure and fresh water that tastes like spring water. The tested full flow rate is 0.75 gpm at 60 psi. Developed for household and commercial use, the under sink water filter system can be installed in your kitchen, bathroom, RV, or office to meet your daily water needs. Ideal for drinking, cooking, skincare, and cleaning.
- TDS is not a professional way to measure the water quality. Essential minerals such as calcium, potassium, sodium, and magnesium are dissolved solids, so PPM may not drop if you test with a TDS meter. The Waterdrop undersink water filtration system keeps essential minerals while removing unwanted elements.
- Note: The activated carbon is made from natural coconut shells. Please confirm whether you are allergic to it. Attention: The extended filter life of this filter requires more filter materials, resulting in a larger product size. Please verify the dimensions of your undersink space before making a purchase.
Specs 31
| Brand | Waterdrop |
|---|---|
| Special Feature | 24 months, 24420 Gallons, Easy Installation, NSF/ANSI 42&NSF/ANSI/CAN 372, PFOA/PFOS and Chlorine Reduction |
| Product Dimensions | 3.9"L x 3.6"W x 16.7"H |
| Material | NSF/ANSI Approved Components |
| Capacity | 19000 gallons |
| Package Information | Box |
| Installation Type | Under Sink |
| Purification Method | Activated Carbon |
| Power Source | Mechanical Water Pressure |
| Other Special Features of the Product | 24 months, 24420 Gallons, Easy Installation, NSF/ANSI 42&NSF/ANSI/CAN 372, PFOA/PFOS and Chlorine Reduction |
| Container Type | Box |
| LowerTemperature Range | 35 °F |
| Maximum Flow Rate | 0.75 gpm |
| Upper Temperature Rating | 100 °F |
| Supported Water TDS Level Maximum (PPM) | 700 |
| Filter Life Cycle | 2 years |
| Product Shelf Life | 24 months |
| Item Dimensions L x W x H | 3.9"L x 3.6"W x 16.7"H |
| Item Weight | 1.63 kg |
| Material Type | NSF/ANSI Approved Components |
| EU Spare Part Availability Duration | 2 years |
| Brand Name | Waterdrop |
| Model Name | WD-15UA |
| Model Number | WD-15UA |
| UPC | 840814170847 |
| Manufacturer | Waterdrop |
| Item Highlight | Reduces Lead, Chlorine, Bad Taste & Odor, Under Counter Water Filter Connects Directly to Your Faucet, NSF/ANSI 42 Certified |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Item Type Name | 19000 Gallons |
| Part Number | WD-15UA |
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Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 3 – Nov 4
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
A company that actually stands behind its products
Set name: 15UA
I originally purchased my Waterdrop system in June 2023, so I’ve now had experience with both the product and the company for about three years. I’ve had two issues during that time, and both times Waterdrop’s customer service has been excellent. Most recently, Becky helped me with my warranty claim and was fantastic to work with. She responded quickly, made it extremely easy to show what was happening by submitting a short video, and got a replacement taken care of without making me jump through a bunch of hoops. They even replaced an additional filter I had recently purchased for the system. Becky made the entire process quick and painless. Obviously, I’d rather never have an issue with a product, but things fail. What matters to me is whether a company actually stands behind what it sells, and Waterdrop absolutely has in my experience. Both times I’ve needed help, there was no runaround or fighting to get the problem resolved. As for the filter itself, it does exactly what we bought it for. Our water tastes noticeably cleaner, the system is simple and convenient, and we’ve been happy enough with it to keep using it for three years. Most importantly, my wife likes the water — which means I’m happy. Based on my experience with Waterdrop’s customer service, and especially the help I received from Becky, I wouldn’t hesitate to buy from them again.
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Reviewed in the United States on August 7, 2026 by John
Great value and huge difference in taste and odor
Set name: 15UA
Honestly, this is probably my best purchase on Amazon and trust me, as an Amazon Prime member I order from them constantly!! I am extremely pleased with this Waterdrop filter. It is very easy to install as it connects to your cold water line and voila, super clean and great tasting water from the tap! For years, I was a slave to lugging bottles of water home. I preferred purified water only and bought the 2.5 gallon containers with the tap. With all of the brands of water on supermarket shelves, you’d be surprised how little the selection is when it comes to “purified” vs. “spring” water. This meant I had to go to the local pharmacy because they always carried it. Purified water was essential for me because I received a bone marrow transplant some years ago and spent many weeks in the hospital for the procedure. I am a huge water drinker and the ONLY water offered in the hospital to BM recipients was purified water. Hence, I continued to drink only purified water because of its higher level of purity when compared to spring water. So, basically I’m a water snob lol. While selecting a filter, I was obviously concerned about the quality and taste, but also the possibility of a loss of pressure. I’m happy to report that the Waterdrop filter addressed my concerns and exceeded all my expectations!! I do not have my own well. Instead, my neighborhood has a community well that treats the water and we are all charged based on usage. Still, the taste was awful. Also, it contained a high level of lime scale which clogs up my sprayer heads so I have to use cleaning products to remove it. It is also has a noticeable chlorine odor and taste. With this filter, my water now tastes clean, “nonminerally” and its odor free. The cost savings is huge!! I can’t believe how much money I poured down the drain. Also, there was no loss of pressure. Keep in mind it hooks to your cold water supply. This is fine because who consumes 8 cups of hot water a day anyway? For cooking, I use cold water that gets heated up anyway. My coffee tastes much better. Also, it’s better for my pets! I highly recommend this water filter. It is a great value and saves you a considerable amount of money in the long run! It is more practical than water pitchers that require filter changes. I’ve had it installed for 3 months now with no issues. I’m pretty sure you will feel the same way.
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Reviewed in the United States on January 8, 2021 by Gem5858
Water finally tastes right
Set name: 5Y
I have one primary criteria for a water filter: the water coming out the other end needs to taste good. This filter was a smashing success in that regard. The next criteria are ease of filter changes and ease of installation. Changing the filter is dead easy, but I'm not anticipating having to do that for 5 full years. My last house had a 4-stage RO filtration system and changing those filters was a royal pain, involving wrenches, buckets, towels to mop up spills, etc. So, through painful experience, it was one of the things I looked for this time around. I want to be able to change a filter in 3 minutes - not 3 hours. Installation was very easy, too, but because I am using this as an in-line filter for our refrigerator, it did not come with the correct fittings. It assumes you are installing it in the cold water line under your kitchen sink, and those are typically 3/8" compression fittings - which understandably match what is on this unit. A fridge, on the other hand, uses 1/4" compression fittings for its water line (as well as the valve in the wall behind the fridge) and so I had to make a run to my local plumbing store to purchase two adapters - one for the inlet and one for the outlet - for a grand total of $8. I also found that the threaded connection at the water supply valve leaked unless I used the Teflon tape that (thankfully) ships in the box. I torqued everything up and observed it for 30 minutes: no leaks. This is important since it will be behind the fridge where slow leaks wouldn't be obvious until the floor and/or walls were ruined. So, why TWO filters for my fridge? Simple. The one inside my Whirlpool fridge (Everydrop EDRARXD1) is both expensive and it doesn't do a very good job. I had to fire it. Nothing personal. They retail for $60 and need to be replaced every 6 months. So that's $120/year - all for the privilege of bad-tasting water. And, both the water and the ice in my fridge tasted horrible, even with regular filter changes. So, for essentially the same price, I purchased this 5-year filter and put it in-line with the fridge. Now, I have dual filtration: the first is this one and then the one inside the fridge. I figure that the fridge filter will no longer have to do much of anything, since this filter does all the heavy lifting, so I do not plan to change it - it can act as a pass-through piece of pipe for the next 5 years. After installation, I ran the water for 5 minutes as instructed and then had my wife and a guest in our house taste the water. Moment of truth... We all agreed it was pristine. No odor. No taste. Mission accomplished.
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Reviewed in the United States on September 6, 2025 by Steven Sabin
Good price, easy install, works well.
Set name: 15UA
Good price, easy to install, no leaks and the filter lasts a surprisingly long time removing chlorine tastes. Used one for about 18 months before changing out the filter. Just moved to a new house and installed a new filter, and it barely even affects flow.
Reviewed in the United States on September 24, 2026 by jeems
Great Filtration, but Water Pressure Takes a Hit
Set name: 15UA
I've been using the Waterdrop 15UA Under Sink Water Filter System for a few weeks now, and I'm overall quite pleased with it. The water tastes noticeably better, and I appreciate the reduction in chlorine and other contaminants. However, the one downside I've noticed is a significant decrease in water pressure. Pros: Excellent water quality: The filter effectively removes chlorine, sediment, and other impurities, resulting in cleaner, fresher-tasting water. Easy installation: The system is designed for DIY installation, and the included instructions make it straightforward to set up. Long filter life: Each filter cartridge lasts up to 24 months or 16,000 gallons, reducing the need for frequent replacements. Affordable price: Compared to some other under-sink filter systems, the Waterdrop 15UA is a budget-friendly option. Cons: Reduced water pressure: The most noticeable drawback is the decrease in water pressure. While it's still usable, it's definitely a trade-off for cleaner water. Overall: If you're looking for a reliable and affordable under-sink water filter that significantly improves water quality, the Waterdrop 15UA is a good choice. However, be aware that you may experience a decrease in water pressure. Additional Tips: If water pressure is a major concern, you might consider a different type of filter system, such as a reverse osmosis system. Regularly check the filter cartridge and replace it as needed to maintain optimal water flow and filtration. I hope this review is helpful!
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Reviewed in the United States on February 13, 2025 by pa
Great filter to easily improve your water quality.
Set name: 15UA
This product comes with everything to install as a main filter or on a single line. IF you bought a water filter faucet to be installed in addition to the original OR you purchased a Kitchen Faucet WITH Water Filter Faucet, you will need to buy an additional splitter for the cold-water supply valve. Really good choice if you live in a apartment or rental property. Not a install and better than using a pitcher for drinking water. The price and ease of installation makes it easy to remove and take it with you for the next place. The filter is thin and a little tall but fits nicely under the sink. The part that you mount, where the filter installs to, has the ability to lift up and be removed as a complete unit before taking the filter off. That helps to have something under it to catch water when you remove the filter. I purchased a pressure gauge to see when the filter is getting to the end of its life. Ad says 2 years of use, MAX. That depends on many factors but the two easiest is water Use and Quality. Water quality can greatly reduce the life. If you have a well or if the municipality has sediments, mineral deposits, and "other", the life will be far less. If you have the filter in line with the main faucet and dishwasher, more water flow, the more water used, the more the filter is catching. The 10UA is good for 11000 Gallons. The 15UA is good for 19000 Gallons. You can look up water usage on USGS. Can you buy the 10UA and upgrade the filter to 15UA later, yes. The mounts are the same. Water quality is really good; Price point is great; Filter replacement cost is budget friendly.
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Reviewed in the United States on March 1, 2026 by iLOVEstuff
Quick install and water tastes great
Set name: 15UA
A ten minute install for me, including getting my tools out and putting them away. I already have good water (Bremerton WA; reservoir water amazing, well water ok) and was just looking for a bit of "polish". This unit is meeting all of my needs very well. So quick and easy I don't know why I didn't do it sooner. Like I said, my water is already good, so this just raises it up. Removes all chlorine aroma and water tastes and smells clean and fresh. I can't speak to longevity yet, but my water is very low in particulates so I don't anticipate any problems. Replacement filters are affordable, and I'll upgrade to their improved cartridge when the time comes. They install and remove with just a quarter turn lock. Very nice. Read the specs to see if it'll meet your needs. I'm very happy with mine.
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Reviewed in the United States on March 22, 2026 by Mtalus
Installed in our bathroom for late night kid refills
Set name: 5Y
I have little kids and got sick of running downstairs to refill their water bottles in the middle of the night, but didn't want to give them tap water from the bathroom sink. My city has well-treated water, but is historic and the water very likely passes through lead pipes on its way to our house. I thought an under sink water filter might be a good solution, and it's working out very well! This was easy to install, isn't too big, and I love that it's supposed to last 5 years. The water tastes better, but I wouldn't say it tastes good - it's just "fine."
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Reviewed in the United States on July 18, 2026 by Meredith D