






💧 Elevate your water game with pure, effortless filtration—because clean water is the new luxury.
The Waterdrop WD-K19RF is a premium replacement filter designed for WD-K19-S and WD-K19-H countertop reverse osmosis systems. Featuring an ultra-fine 0.0001 micron RO membrane, it effectively removes a wide range of contaminants including heavy metals, fluoride, and PFAS. With a robust 12-month lifespan and a quick, tool-free replacement process, it offers both convenience and superior water quality for health-conscious professionals.






| ASIN | B0B253V5GT |
| Best Sellers Rank | #31,581 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #236 in Replacement Under-Sink Water Filters |
| Brand | Waterdrop |
| Compatible Water Purifier Models | Waterdrop WD-K19-H, Waterdrop WD-K19-S |
| Customer Reviews | 4.5 4.5 out of 5 stars (144) |
| Date First Available | April 23, 2021 |
| External Testing Certification | WQA |
| Item Weight | 1.76 pounds |
| Item model number | WD-K19RF |
| Manufacturer | Waterdrop |
| Material | PP Cotton & Carbon Fiber & Reverse Osmosis Membrane |
| Number of Items | 1 |
| Product Benefits | Removes Fluoride |
| Product Dimensions | 6"D x 6"W x 14"H |
| Unit Count | 299.0 Count |
D**E
Countertop water cooler filter
It’s perfect. The right size size for my water cooler Thanks a bunch 💜
J**D
Excellent product
I bought this as my backup for my filtration system. I have used the system for over a year now and the first filter actually lasted 10 months. I was thrilled as the information had said it should last about a year. The water here is well water and has a high concentration of calcium. The Waterdrop system and filters have consistently filtered water with TDS at 100+ to TDS at 30-40 during that 10 months of daily usage. I admit to using the system to provide drinking water and water for tea and coffee only. I highly recommend the system and filters.
P**S
Amazon for the win
Waterdrop websites filters were sold out but good Ole Amazon delivered just in time. These filters last a really long time.
J**N
Effective and Keeps Water Fresh
This water filter really works. When replacing the old cartridge, I can see it’s done its job—catching all the algae. With the new filter, the water tastes noticeably fresher. I’ll definitely keep purchasing this product regularly.
V**R
Good quality product and services from Waterdrop
Waterdrop brand makes good products with guarantees. I have been using this filter for 2nd year now, all is good! Save me a lot of money on water. Save your money on bottled water, water filter and keep our planet cleaner
X**U
Misleading Claim — Filter Only Lasted Half the Time
I purchased this water filter in June because the product page says it is the same as the original filter and can last up to one year. However, it has only been less than six months, and the water has already started to taste strange—almost the same as unfiltered tap water. Clearly, the filter is no longer working properly. This is very disappointing and feels misleading based on the product description. I would like a refund or a replacement, as the filter definitely did not last as long as advertised.
A**R
As Advertised.
As Advertised.
H**Y
Great customer service
With the original filter I was able to get below 15ppm, now with this filter I was only to get 20-25 ppm. Update: Waterdrop reached out to me and sent me a replacement free of charge. I tested the new filter and I was able to reach below 20 ppm. I can say that I am very satisfied with waterdrop customer service.
A**R
Efficace je recommande fait parfaitement, il faut vider le réservoir avant utilisation ( faire un drainage)
R**N
Good I guess, you just have to trust the manufacturer or test the filtered water rich is costly
D**N
Overpriced for a crappy device. Do yourself a favour and by anoth brand.
Trustpilot
2 weeks ago
3 weeks ago