Eheim replacement propeller for Classic 150 filter.

I have a noisy filter and after braking 2 ceramic shafts and making a SS shaft that probably isn't very straight i tried to alleviate the problem by printing a new impeller.

The impeller has 4 blades instead of original 3 for better stability and maybe a bit less vibrations . The filter is still noisy but at least is a good replacement part .

It has to be printed with supports as the blades are 0.5mm raised from bed.

I attached also the fusion360 file for modification/improving if needed.