This is a replacement impellor for Powerhead 1200 pump.
Recommend printing with PETG since it's a moving part.
Make sure you clean the print bed thoughly before printing for an aquarium.
Model can be found in Thinkercad: https://www.tinkercad.com/things/fk4qlP7NCrg-impellor-maxi-jet-powerhead-1200-marineland
The author marked this model as their own original creation.