Waterdrop

Waterdrop 15UA Under Sink Water Filter System 2 Years Reduces Lead Chlorine Bad Taste Odor Under Counter Water

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$55.99$69.99

About this item

  • Less than $35.99 per replacement filter WD-RF15(Search " B085G78F7R "on Amazon), save over 50% of cost on subsequent use.
  • 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.
  • 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐯𝐞 𝐌𝐮𝐥𝐭𝐢𝐬𝐭𝐚𝐠𝐞 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧:The Waterdrop Direct Connect Under Sink Water Filtration System uses innovative multistage filtration. And it can effectively reduces PFAS, PFOA/PFOS, lead, chlorine, heavy metals, chemical iṁpurity, sediment and other large particles.[2] Enjoy healthy and 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.
  • 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, ensuring reliable use from inside to outside. Certified by IAPMO against NSF/ANSI 42 Standard, the water filter can effectively reduce chlorine, taste and odor. Tested by third party laboratory against NSF/ANSI 53 standard it can reduce lead. To look over the 42&372 certification, please search "WD-15UA" on IAPMO website.
  • 𝐄𝐚𝐬𝐲 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: The system should be connected only to a cold water supply. With innovative push-to-connect fittings, the entire installation process takes less than 3 minutes. The design ensures that you can replace the filter in 3 seconds. The system includes a 3/8” hose with a direct connection that adapts to standard 3/8’’ feed water valves under US sinks. The 3/8’’–1/2’’ convertor fitting helps you connect the system to 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, Calcium, Potassium, Sodium, Magnesium...These essential minerals are dissolved solids, PPM will not be dropping if you test with a TDS meter. Waterdrop undersink water filtration system is keeping all those minerals, but removes elements that are harmful to your body.
  • 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.
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Product details

BrandWaterdrop
Special FeaturePFAS, PFOA/PFOS and Chlorine Reduction, 24 months, NSF/ANSI 372&42, Easy Installation, Replacement filter: WD-RF15 See more
Product Dimensions3.9"L x 3.6"W x 16.7"H
MaterialNSF/ANSI Approved Material Components
Capacity19000 Gallons
Included ComponentsWaterdrop Undersink Water Filtration System×1 ·Inlet hose×1 ·Outlet hose×1 ·3/8’’–1/2’’ Convertor set×1 ·Self-tapping screws×2 ·Teflon tape×1 ·Drilling sticker×1 See more
Package InformationCartridge
Installation TypeUnder Sink
Purification MethodRemove iṁpurities, retain beneficial minerals
Power SourceCorded Electric

Technical specifications

brandWaterdrop
special_featurePFAS, PFOA/PFOS and Chlorine Reduction, 24 months, NSF/ANSI 372&42, Easy Installation, Replacement filter: WD-RF15
product_dimensions3.9"L x 3.6"W x 16.7"H
package_informationCartridge
installation_typeUnder Sink
power_sourceCorded Electric
model_nameWD-15UA
maximum_flow_rate0.75 Gallons Per Minute
upc840814170847
manufacturerWaterdrop
item_weight3.52 pounds
item_model_numberWD-15UA
date_first_availableJanuary 8, 2020
best_sellers_rank#2,801 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Under-Sink & Countertop Filtration

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Customer reviews

4.57,758 ratings

Customers say

Customers find the water filter easy to install under the kitchen sink and appreciate its effectiveness in removing chlorine taste and odor.

★★★★★

Filtration made easy and delicious

CustomerJanuary 14, 2026

Makes tap water taste like expensive water bottles. AMAZING ! Installation is easy I had a harder time cleaning under the sink.( I have a spray bottle for EVERYTHING ) OMG. Filtration, yeah easy snap in o ring plugs make a positive connect and the 3/8 standard fitting in and out . I used 3/4 wood screws so it wouldn’t penetrate into the other cabinet for the holder . If you want hot water to be filtered as well you would need one of these kits for your hot side Read more

★★★★★

Quality and “bang for your buck”

rhonda lawson-buenoDecember 9, 2025

I purchased this product based on reviews found online on consumer sites. This unit is intended for under the sink installation but i did not realize this when i ordered it. The unit comes with 1/2 inch and 3/8 inch supply lines which are pretty standard for the manufacturer intended use and installation. I feel no need to filter all tap water for washing dishes and such and wanted to use it for the water dispenser and ice maker built in to the fridge. My intention was to use it as a replacement for my GE refrigerator inside filter which as many others customers will testify is very expensive to replace due its relatively short lifespan (less than 3 months) even in a a two person household. A call to GE and they provided me with a bypass device to replace the onboard filter so i could install an exterior unit as many have done to great satisfaction. I contacted Waterdrop customer service and agent Karina was very helpful in trying to find me a suitable adaptor for the size difference of my refrigerator connections but we had both come up with the same problem. The needed parts were not available on Amazon so in conclusion we both agreed a visit to plumbing supply would be most appropriate. The parts i needed cost me $12. No problem, for me this was an easy fix and the filter works 1000x better than the onboard OEM unit that GE puts in their fridge. Even when new it would take like 20-30 seconds to fill a glass of water and now its like 5 seconds. Filling a pot of water to cook with went from maybe over 2 minutes to under a minute. Totally satisfied at this point i was surprised with a follow-up from Waterdrop and a short conversation led to an offer for a reimbursement of the cost for buying the extra parts i had purchased. In my opinion this is what i would call OUTSTANDING CUSTOMER SERVICE ! I will certainly update this review accordingly if the unit falls short of its advertised expectations. Read more

★★★★★

Water finally tastes right

Steven SabinSeptember 6, 2025

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. Read more

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