Fluval FX2 · FX4 · FX6
Accessories for Fluval FX2, FX4 and FX6 canister filters.
Upgrade the intake with a dual sponge prefilter and the return with an expandable, aimable spray bar. Designed and printed to order by Aqua Stiles in York, Pennsylvania, and tested on all three FX models.
Build your setup
Your filter
Your FX4 setup
IntakeDual Sponge PrefilterTwo removable sponges at the intakeFrom $24.99ReturnExpandable Spray Bar, FX4 kit2 extensions · 2 swivels$44.99We tested this kit on the Fluval FX4. Each extension adds 5.91 in (150 mm) of reach, so check your tank space before ordering.
Add-onSpray Bar Extension + SwivelOne more extension and locking swivel$19.99Where each part goes
- Intake: Dual Sponge Prefilter
- Return: Expandable Spray Bar
Simplified diagram. The canister filter, hoses and aquarium are not included.
Compatibility
| Accessory | FX2 | FX4 | FX6 | Notes |
|---|---|---|---|---|
| Dual Sponge Prefilter | Physically tested on all three | |||
| Expandable Spray Bar | Each kit tested on its matching filter | |||
| Spray Bar Extension + Swivel | With a kit | With a kit | With a kit | Adds length to any Aqua Stiles kit |
The Fluval FX range
Questions
Do I need both the prefilter and the spray bar?
No. They work independently: the prefilter fits the intake and the spray bar fits the return. Choose either or both.
Which spray bar kit should I choose?
The kit that matches your filter. We tested the FX2 kit (1 extension) on the FX2, the FX4 kit (2 extensions) on the FX4 and the FX6 kit (3 extensions) on the FX6. Each extension adds 5.91 in (150 mm) of assembled reach, so check your tank space before ordering.
Can I lengthen a spray bar later?
Yes. The Extension + Locking Swivel add-on fits any Aqua Stiles spray bar kit.
Is Aqua Stiles affiliated with Fluval?
No. These are independently designed accessories, made by Aqua Stiles. Fluval is a trademark of Rolf C. Hagen Inc.; the model names identify compatibility.
Fluval is a trademark of Rolf C. Hagen Inc. Aqua Stiles is an independent maker and is not affiliated with Hagen.




