Insert for Aqueon aquarium filter. A disposable shop rag that doesn't fall apart in water and some charcoal from the hardware store garden section is all that is needed. Made to snap together with the towels and carbon in between.
Update:
A year and a half later this frame is still working well. No issues being in the aquarium, works just the same as when it was printed.
aquarium_filter_base.stl | 220.5KB | |
aquarium_filter_top.stl | 213.7KB |