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Specs
- Made by
- Waterdrop
- SKU
- WD-K19RF
- Waterdrop model
- WD-K19RF
- Type
- Replacement filter
- Category
- RO replacement filter
- Change about every
- 12 months
- Rated capacity
- 1,100 gallons
- Filter life, as stated
- Up to 12 months or 1,100 gallons
Specs are from Waterdrop's product page. Anything Waterdrop does not state is left out.
Fits these models
Listed for
What it is certified for
We show only the certification statements Waterdrop gives for this product, word for word. You can check them in the certifier's public listing.
About this filter
The Waterdrop WD-K19RF is a replacement filter made for the K19 countertop reverse osmosis system. It is designed to keep your countertop RO unit working properly.
This cartridge is for owners of the Waterdrop K19 who need to replace their expired filter. It has a filter life of up to 12 months or 1,100 gallons.
Filter life and replacement
The WD-K19RF has a rated capacity of 1,100 gallons. Change it about every 12 months, or up to 12 months or 1,100 gallons as stated for this filter.
A filter is built to handle a set amount of water. You should change it sooner if your water flow slows down or if your system filter light turns on. Many RO filter lights track time or water used rather than testing the water directly.
Before you install
Always flush a new filter before using the water for drinking. Run water through the cartridge following the flush steps on the box.
If you ever need to perform plumbing work and feel unsure of the steps, hire a licensed plumber.
What it fixes
- Replaces an expired filter in your countertop unit.
- Restores water flow if an old, clogged cartridge has slowed it down.
- Resets the filter life tracking on your K19 system after a change.
- Provides fresh filtration capacity for up to 1,100 gallons.
How to confirm it fits
- Check your countertop system label to verify it is the Waterdrop K19 model.
- Look at the printed part number on your existing cartridge to match WD-K19RF.
- Ensure your unit is a reverse osmosis system that takes the K19 filter cartridge.
- Confirm your current unit is not a standard under-sink or fridge filter system.
Questions
What systems does the WD-K19RF filter fit?
It fits the Waterdrop K19 countertop reverse osmosis system and replaces the K19 filter.
How long does the WD-K19RF filter last?
The filter life is up to 12 months or 1,100 gallons. Plan to change it about every 12 months, or sooner if water flow slows down.
Does the filter indicator light mean my water quality dropped?
Many RO filter lights simply track time or the volume of water used. They do not test the water.
Do I need to flush the filter after installing it?
Yes. Run some water through the new filter before drinking from it. Follow the flush instructions on the product packaging.
Guides for this filter
Shipping and returns
Orders ship from Waterdrop in 1 to 3 business days. Free standard shipping on orders over $35.
Wrong fit or a problem? Contact us within 30 days of delivery.
Full shipping and return policy