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💧 Elevate your hydration game with Waterdrop RF15 — pure water, zero compromises.
The Waterdrop RF15 Replacement Filter Cartridge is a high-capacity, NSF/ANSI certified under-sink filter compatible with 15UA/15UB/15UC models. It delivers up to 19,000 gallons of purified water over 2 years, reducing harmful contaminants like PFOA, PFOS, PFAS, lead, chlorine, and unpleasant tastes and odors. Featuring a 20X larger filtration area to prevent clogging and a quick twist-and-lock replacement design, it ensures hassle-free maintenance and reliable, clean water straight from your tap.
















| ASIN | B085G78F7R |
| Best Sellers Rank | #1,762 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Replacement Under-Sink Water Filters |
| Brand | Waterdrop |
| Brand Name | Waterdrop |
| Compatible Water Purifier Models | Waterdrop WD-15UA, Waterdrop WD-15UB |
| Customer Reviews | 4.6 out of 5 stars 2,299 Reviews |
| EU Spare Part Availability Duration | 2 Years |
| External Testing Certification | IAPMO |
| Item Dimensions D x W x H | 3.6"D x 3.6"W x 15"H |
| Manufacturer | Waterdrop |
| Manufacturer Part Number | RF15 |
| Manufacturer Warranty Description | 1 Year Manufacturer |
| Material | NSF/ANSI Approved Material Components |
| Material Type | NSF/ANSI Approved Material Components |
| Model Number | RF15 |
| Number of Items | 1 |
| Product Benefits | Remove iṁpurities, retain beneficial minerals |
| Product Dimensions | 3.6"D x 3.6"W x 15"H |
| Set Name | Waterdrop RF15 Replacement Filter Set |
| Unit Count | 1.0 Count |
R**Z
Works perfectly, affordable, and easy to install
This is the best filter and system ever. The system is super easy to install yourself, it is very affordable, and delivers amazing results. I live in an area with highly clorinated water, so much that when you flush or turn the water on, it smells like someone has a bottle of Clorox. Also very hard water with a ton of nasty minerals I don't want. This takes every bit of chlorine smell and taste out of the water and creates a perfect drinking and cooking water.
L**A
I have been using this water filter for years
I’ve been using the Waterdrop RF15 water filter for years, and I absolutely love it. It’s incredibly easy to install, and replacing the filter is a breeze — no complicated setup or tools required. The water tastes fresh and clean, and I feel confident knowing that it’s effectively reducing contaminants. The filter lasts a good amount of time, and I love that it’s affordable while still providing excellent filtration. It’s made a noticeable difference in the taste of my water, and I can tell the quality is much better compared to unfiltered tap water. Overall, I highly recommend the Waterdrop RF15. It’s simple to use, reliable, and provides great value for money. It’s a must-have for anyone who wants clean, great-tasting water without the hassle.
K**Y
Easy to Install and Works Great
I like that it was easy to install and that it lasts for a long time. Just had to twist it in and turn on the water and we were ready to go. Helps save a lot on buying bottled water. The water is clear and filtered well.
B**S
Does the job as described. Very good filter!
Works very well. I highly recommend. Takes out Iron in the well water, no aftertaste. Removes what it says it does. It also lasts for 2 or more months, depending on each situation you might have with your water. I have been using this cartridge under my kitchen sink only on the cold side for years now. Love it. I had to add a few valves and some PEX work. I live in a RV. One might want a pro install it, so you can isolate the filter for easy changing of the cartridge. Good water pressure until it has done it's job. Great value.
J**D
Definitely recommend this item and seller
Great product , works amazing , slim profile. Easy install . Water taste great . Have ordered multiple times .
R**T
2 perfect units
The unit itself was so easy to install. Two screws in the wall, a couple quick water lines and badaboom you got filtered water. I had an issue with the replacement filter however it was quickly resolved. The customer service was top notch. Frustrating at first, but Kimberly was so nice and really made the situation right. They immediately sent a new replacement filter that worked perfectly. Really have bought into the ecosystem and considering one of their higher end systems now. For the price on this you can’t beat it. Installed 2 units in my house.
C**L
Easy to install & filter water taste good.
I've been using the Waterdrop under-sink system for a while now, and replacing the filter used to be the chore I dreaded, but the RF15 cartridge completely changed that. Honestly, the twist-and-lock design is a lifesaver; I can swap out the old one and click the new one into place in literally seconds—no tools, no mess, no dealing with complex plumbing under the sink. The most important part, of course, is the water quality, and I can immediately tell the difference; the tap water chlorine taste is completely gone, leaving behind water that tastes clean and crisp, which makes me feel a lot better about drinking it and using it for cooking.
J**.
Works great and easy to replace
Works great and easy to replace.
Trustpilot
1 week ago
1 month ago