The stock supplied heads where kind of boring and in black plastic which blocked the LEDs that where supplied with my pump.
This design spreads the water in an interesting pattern and lets the LEDs light up the water streams much better when printed with transparent material than using the stock ones.
Printed with a raft and used a 1mm drill bit to clean the tiny pipes.
Update 20240115: Fixed mesh errors in .stl file
The author marked this model as their own original creation.