Filter accessories for Fluval FX
Original 3D-printed parts for Fluval FX2, FX4 and FX6 canister filters. On the intake side, the Dual Sponge Prefilter Adapter adds two removable sponges ahead of your canister media. On the return side, the Expandable Spray Bar lets you aim flow with rotating, locking joints, and the Extension + Locking Swivel add-on lengthens a kit you already have. Each part is designed and printed to order in black PETG in York, Pennsylvania, and was tested by Aqua Stiles on all three FX models.
Questions about filter accessories
Which Fluval filters do these fit?
The prefilter adapter and the spray bar kits were tested by Aqua Stiles on the Fluval FX2, FX4 and FX6. The extension add-on fits Aqua Stiles spray bar kits only.
Do I need the extension add-on?
No. Each spray bar kit is complete, with a central inlet, end caps, extensions and locking swivels. The add-on lengthens a kit you already have.
Are these Fluval parts?
No. They are independently designed accessories. Aqua Stiles is not affiliated with or endorsed by Fluval; the model names identify compatibility.
Need something for your setup?
Tell us what it should do. Dimensions, equipment details, photos or a quick sketch help us understand your idea.




