About this 3D model

New impeller for EKWB expansion tank, as the original impeller has too much play. As a result, the original impeller kept stopping, which of course reduced the flow. I used ASA as the filament. New impeller for EKWB expansion tank, as the original impeller has too much play. As a result, the original impeller kept stopping, which of course reduced the flow. I used ASA as the filament.