
Advanced
UF membrane
- Any contaminants larger than 0.01 μm cannot go through the ultrafiltration membrane, which results in excellent filtration performance.[1]
Compact
but efficient design
- The compact design saves a significant amount of under-sink space and creates more room for storage.


3-second
filter replacement
- Innovative system design allows you to replace the filter within only 3 seconds. The push-to-connect fittings make installation and replacement easier than ever, saving you time and effort. No additional tools needed!
Compatible
with WD-UA/UB/UC
- The under sink water filters are designed to fit all WD-UA/UB/UC series to meet different water needs. Compatible with all three ways of connection, the filters bring you purified water from your original faucet, our dedicated faucet, or your refrigerator.


Improved filtration
- Four-stage filtration. This under sink water purifier adopts an advanced ultrafiltration membrane to reduce, chlorine, taste and odor, sediment, rust, and other heavy metals, which is tested by the third-party laboratory.[1] You don’t have to worry about the safety of the filtered water.
Superior material
- The under-sink water filter adopts activated carbon block along with other advanced filter media, ensuring efficient and safe filtration. Specially added KDF effectively inhibits the growth of pollutants. The BPA-free, lead-free material ensures more reliable use from the inside out.


Extended filter life
- Filtration capacity:
- 8,000 gallons
- 16,000 gallons
- 24,000 gallons
- Waterdrop Undersink Water Filtration System can meet a tap water consumption of 22 gallons a day.
Less future
replacement cost
- On average, you’ll pay only 5¢ per day for the filter replacement and your water quality will improve with each passing day.
- Note: Cost varies according to product model.

|
 |
 |
 |
 |
|
Replacement for 15UA/B/C Undersink Filter System |
Replacement for 15UA/B/C-UF Undersink Filter System |
Remineralization replacement water filter |
Replacement for 17UA/B-UF Undersink Filter System |
Situation |
Undersink/Bathroom/Refrigerator/Icemaker/RV |
Undersink/Bathroom/Refrigerator/Icemaker/RV |
Replace bottled mineral water |
Undersink/RV/Bathroom |
Filtration Capacity |
16000 Gallons |
16000 Gallons |
8000 Gallons |
19000 Gallons |
Reduce Substances |
most of pollutants such as chlorine, taste and odor, sediment, rust and other heavy metalsm |
most of pollutants larger than 0.01 micron |
chlorine, taste and odor, add minerals, weak alkaline water |
most of pollutants larger than 0.01 micron |
Reduce TDS |
No |
No |
No |
No |
Retain Beneficial minerals |
✓ |
✓ |
✓ |
✓ |
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