Water type
Freshwater + Marine
Fits
Fluval FX5, Fluval FX6
Part no.
A20226
Fluval FX5/FX6 Giant Output Nozzle
Restore adjustable return flow to a Fluval FX5 or FX6. This is the genuine Fluval output nozzle — Fluval part number A20226, sold on this site under the Hagen part code PF104l — for the Fluval FX5 and FX6 canister filters. It clips onto the filter's output and swivels to aim the return flow around the aquarium. Replace a cracked, lost or stiffened nozzle to get proper circulation back.
Key features
- Genuine Fluval part — made to the original fit, not a generic reproduction.
- Adjustable direction — swivels to aim return flow exactly where the tank needs it.
- Direct-fit — clips straight onto the existing output, no tools required.
- Fresh and marine safe — no difference in the plastic between fresh and saltwater use.
Specifications
| Manufacturer part number | A20226 (also listed as PF104l) |
|---|---|
| Fits | Fluval FX5, Fluval FX6 |
| Water type | Freshwater and marine |
| Pack size | 1 output nozzle |
Will it fit my filter?
This nozzle fits the Fluval FX5 and the Fluval FX6 canister filter's output fitting. Fluval lists it specifically for the FX5 and FX6 — it is not sold or listed as fitting the smaller Fluval FX4. Check the model printed on your filter's motor housing lid before ordering if you're not sure which canister you own.
What's included
- 1 x genuine Fluval output nozzle
Suitable for, and not suitable for
Suitable for any Fluval FX5 or FX6 running fresh or marine water. Not suitable for the Fluval FX4, FX2, or any non-Fluval canister filter.
Fitting it
The nozzle push-fits onto the output stem — no tools needed. If the old nozzle has gone brittle or cracked at the swivel joint, it usually snaps off during removal; that's normal and not a sign you're doing something wrong.
Goes well with
- Fluval FX5/FX6 motor seal ring — check this while the filter is open for its next service.
- Fluval FX5/FX6 impeller assembly — the part to check if flow feels weak even with a good nozzle.
- Fluval FX5/FX6 motor unit with impeller and O-ring — the full power-end fix for a filter that's lost real output.
Warranty and delivery
This part is covered by your rights under Australian Consumer Law. It ships as a small parcel with standard delivery.
Common questions
Why has my FX5/FX6's flow pattern gone weak or uneven?
A cracked or seized nozzle is a common, cheap-to-fix cause — check it before assuming the motor or impeller has worn out.
Does the nozzle affect the filter's overall flow rate?
It changes the direction and spread of the return, not the total flow the pump produces.
Will this fit my Fluval FX4?
It's listed for the FX5 and FX6 only — check your model before ordering.
Do I need to remove the whole output fitting to change the nozzle?
No, the nozzle itself clips on and off the existing output stem.




