Fluval Flex Aquarium 123ltr Pump
Wattage
21 W
Flow rate
770 L/h
Fits
Fluval Flex 123 L aquarium kit
Part no.
A14780
Voltage
230-240V/50Hz (AU); 120V/60Hz variant also exists
Genuine part
Yes, genuine Fluval
Fluval Flex Aquarium 123ltr Pump
The circulation pump that drives water through the Fluval Flex 123 L's hidden filter chamber. This is the genuine Fluval PH-2000 pump (Fluval part A14780) built specifically for the 123 litre Flex – it's not interchangeable with the smaller 34 L or 57 L Flex pumps.
Will it fit my tank?
This pump fits the Fluval Flex 123 L aquarium kit only. The 34 L and 57 L Flex use their own, smaller pumps – this part will not fit those sizes. If only the impeller is worn rather than the whole pump housing, Fluval also sells a cheaper impeller-only replacement (Fluval A14782) for the same PH-2000 pump.
Specifications
| Fits | Fluval Flex 123 L aquarium kit only |
|---|---|
| Manufacturer part number | A14780 (complete pump; impeller only is A14782) |
| Pump model | PH-2000 |
| Flow rate | 770 L/h at 230–240 V / 50 Hz (AU) · 810 L/h at 120 V / 60 Hz |
| Power | 21 W |
What's included
The complete pump and motor housing assembly, ready to fit in place of the original.
Suitable for, and not suitable for
Suitable as a genuine replacement for the circulation pump in a Fluval Flex 123 L. Not suitable for the 34 L or 57 L Flex, or for any other Fluval aquarium – those ranges use different pump models.
Fitting
Fits by hand – the pump connects with a push-fit suction mount, a screw-in hose connector and a screw-in output nozzle, matching the original assembly. No special tools are needed for a straight swap.
Warranty and delivery
Covered by Nick's Aquarium Oceanarium Terrarium's standard returns policy in addition to your rights under Australian Consumer Law. Ships from our North Lakes, QLD warehouse.
Common questions
Will this fit my 34 L or 57 L Fluval Flex?
No. Those sizes use their own, smaller pumps – this part is specific to the 123 L Flex.
My pump is noisy or not priming properly – do I need the whole pump, or just the impeller?
If the housing, magnet and shaft are all in good condition and only the impeller is worn or cracked, Fluval's impeller-only part (A14782) is the cheaper fix. Replace the complete pump if the housing itself is damaged or the motor has failed.
What flow rate does this pump run at in Australia?
770 L/h on our 230–240 V / 50 Hz mains supply, drawing 21 W.
Is this a genuine Fluval part?
Yes – this is Fluval's own PH-2000 circulation pump (part A14780), the same pump fitted to the Flex 123 L as standard.
