This is a water filter clip. Use for holding filter variouse unit/stage. Clip size is 76.2mm or 3". Use hard filament for 3d printing. Polistaer plastic material will be good choice. You can scale it as you need to accomodate other size. IGES file format has been attached for injection molding design. You have to contact with me for other file formats if you need.

You can use it in other purpose, like clamping 3" pipe together.

Custom size and design possible, please contact with me for more details.

Thanks,Mahbub