Mason Jar Filter Funnel

This is a funnel designed to hold a #4 cone coffee filter and to screw onto a wide-mouth mason jar. I use it to filter used cooking oil (after it is fairly cool) to remove small particles but it can be used to filter just about anything. Should be printed a filament that is safe for food contact like PLA.

Updated 5/18/2023 to improve mason jar thread tolerances and to adjust design so it prints well without the need for supports.