Fluval Flex Replacement Impeller - 123L - PH-2000
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Product Information
Full details
The Fluval Flex Replacement Impeller (Part A14782) is an essential maintenance component for owners of the 123-litre Fluval Flex aquarium. It is designed to restore the flow rate and efficiency of the WP2000 circulation pump, making it the ideal solution for hobbyists experiencing reduced water circulation or noise in their filtration system. While it ensures a perfect fit for the factory-installed pump, it is critical to confirm the specific pump model to ensure compatibility before purchase.
All features
| Model Part Number | A14782 |
|---|---|
| Brand | Fluval |
Extended Product Information
FAQs
Will this fit the 57L Fluval Flex?
No, this impeller is specific to the WP2000 pump used in the 123L model.
How often should I replace the impeller?
There is no set schedule, but it is recommended to inspect it every 6 months or whenever performance drops.
Does this include the ceramic shaft?
Yes, the replacement kit includes the necessary components to restore operation.
Is this a genuine Fluval part?
Yes, this is an authentic Fluval replacement part, part number A14782.
Can I use this for other brands?
No, it is engineered exclusively for the specific WP2000 pump by Fluval.
Troubleshooting
Pump is still noisy after replacement
Check that the ceramic shaft is properly seated at both ends and that the intake cover is snapped on securely.
Impeller is not spinning
Check the filter chamber for large debris or sand that may be physically blocking the blades from rotating.
Pros and Cons
Pros
- Perfect fit for the Fluval Flex 123L stock pump
- Easy to install without special tools
- Restores original factory water flow rates
- Quiet and efficient operation
Cons
- Compatibility limited strictly to the WP2000 pump
- Requires careful handling of the ceramic shaft
- Plastic blades are prone to snapping if jammed by debris
Setup, Compatibility & Care
To install, first unplug the pump from the power source and remove it from the filter compartment. Gently pull the intake cover off to expose the impeller chamber. Carefully remove the old impeller and the attached ceramic shaft. Inspect the internal chamber for any grit or calcification and clean it with a soft brush. Slide the new impeller (with its ceramic shaft) into the housing until it clicks into place. Ensure the magnetic component is fully seated. For long-term care, periodically remove the impeller during routine water changes to rinse off accumulated slime or debris, which prevents the motor from straining.