Waterdrop · A2RFG replacement filter
Replacement RO filter for the Waterdrop WD-A2G
Replace the cartridge in your WD-A2G countertop dispenser to maintain reverse osmosis filtration and remineralisation. Waterdrop rates the A2RFG for up to 12 months of use, depending on how much water you dispense and your local water quality.
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WD-A2G fit
Check the model on your dispenser label.
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Up to 12 months
Service life varies with use and water quality.
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RO and remineralisation
One cartridge combines filtration and mineral addition.
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Tool-free fitting
Align the cartridge and press it into place.
Check your dispenser
A2RFG fits the WD-A2G model
Check the model on your dispenser before ordering. The remineralising WD-A2G uses the A2RFG. The standard WD-A2 uses the A2RF-RO.
- Filter reference
- A2RFG (WD-A2RFG)
- Compatible system
- Waterdrop WD-A2G countertop RO dispenser
- Filter type
- Composite RO cartridge with remineralisation
- Rated filter life
- Up to 12 months
- Rated capacity
- 528 US gallons (approximately 2,000 litres)
Replacement and care
Fit the cartridge, reset the indicator and flush
- Lift the filter cover, remove the used cartridge and unwrap the replacement.
- Line up the new cartridge with the guide mark. Press it in until it clicks, then refit the cover.
- Refill the feed tank with fresh tap water to the MAX line. Hold the water dispensing button for five seconds to reset the filter life and start flushing.
- Follow the flush prompts through to completion. Keep the purified-water pitcher in place and discard the flush water.
Manufacturer instructions
Waterdrop WD-A2G user manual
See the maintenance section for filter replacement, the control panel and the full flushing procedure.
Helpful answers
Frequently asked questions
Which dispenser uses this filter?
Choose A2RFG for the WD-A2G remineralising countertop dispenser. The standard WD-A2 uses the A2RF-RO cartridge. Check the model label before ordering.
How long does the A2RFG last?
Waterdrop lists up to 12 months. Actual service life depends on water usage and local water quality. Follow the dispenser’s filter-life indicator.
Does this cartridge add minerals back?
Yes. The A2RFG combines reverse osmosis filtration with remineralisation in the WD-A2G.
Do I need tools to fit it?
The cartridge fits by hand. Align it with the guide mark and press until it clicks into place.
Do I need to flush after changing the filter?
Yes. After fitting the cartridge, hold the water dispensing button for five seconds to reset the filter life and start flushing. Follow the WD-A2G manual until the flush is complete.
Friendly product support
Need help matching your filter?
Send Regal Flow a photo of your dispenser’s model label or current cartridge. We’ll help you confirm which replacement fits.