This is a 3D printable aquarium power filter pump. I use RS 545 motor for this pump. You can use different types of motor, you have to stick to the same dimensions. Use abs type filament to print pump unit. Water inlet dia 19mm and outlet dia 15mm. Break/remove supporting materials after 3d print it. Supporting materials added to pump back part only.
Custom size and design possible, you have to contact with me for more details.
Thanks,Mahbub