Filter Basket for Fluval Spec Aquarium

This is a chamber 1 media filter basket for the Fluval Spec aquarium. It's customizable, but the models featured in the cover image are included. They definitely fit the 2.6 gallon version and probably fit the 5 gallon version too because I think they have the same size of chambers.

The dividers for the compartments are to be printed separately and inserted into the slots on the basket. The baskets have three walls, but the dividers can be printed with a fourth wall as shown by the orange dividers in the cover image. These would be useful for containing loose media like biofilter rocks.

The cover image shows one of the dividers being inserted into the longer basket and a walled divider laying beside the basket ready to be inserted into the basket where the transparent divider is.

One of the included models should be adequate for most people's needs, but if you're not happy with either one, you can easily create your own customized model by setting some simple parameters with sliders. It's fully customizable and the third image shows a screenshot with all the parameters that can be adjusted. Note that I also included the 118 mm walled divider shown in the photos, which is being used in a saltwater aquarium to contain a large amount of biorocks. 
 

Running the Customizer

This download includes the .SCAD file to create the customized 3D printable models. You will have to first install OpenSCAD (free software) on your own computer to process the .SCAD file and present the customizer parameters. Download OpenSCAD and get started. For further details on running the customizer see DrLex's instructions on How to Run Customizer on Your Own Computer.

Alternative to Installing OpenSCAD on Your Computer 

This model is also published on the Thingiverse web site and the Thingiverse online customizer may be used to create your personalized models.

Beware that the Thingiverse web site has been an unstable disaster since March 2020 and they weren't even processing their customizer jobs for over 2 years (July 10, 2020 to August 4, 2022). If you try to use it and your job is still sitting in the queue after several minutes, that probably means they stopped creating the customizer models again and your job is never going to be processed. It might be only a temporary stoppage so you could hope for the best and try again later.

I removed the return channel to the top of chamber 2, removed part of the back left corner to allow for the bracket on the aquarium, added an option for diagonal bars instead of hexagon holes, and added an option for a 4th wall as part of the divider.