Maybe there’s a women’s shelter or something you could donate it to? Or you could post it in a local buy nothing group.
I was wondering the same thing. I didn’t even use mine besides the left pump parts and that was only 2 times.
I second this... I have a breast pump that I used 2-5 times and never again. In used but basically new condition. Can't sell it in FB marketplace because it goes against their rules.