The Juwel Bioflow One aquarium filter and heater combination, utilizes an O2 diffusor which narrows the 16.5mm outlet to a 10mm “jet” to inject air into the water.
One downside can be that this jet creates a strong current in the fish tank, which cannot be regulated.
This Diffusor/Flowresistor can reduce this strong current.
Please check the predesigned styles, if they suite your needs. If you need something else, please be free and download the Fusion 360 Archive or the STEP files for easy modification.
The author marked this model as their own original creation.