Gas can vent cap.
thingiverse
Here's how to design a replica of that old 5-gallon gas can using an open-source CAD tool called OpenSCAD. For making copies of those outdated plastic containers like the 5-gallon gas cans for diesel, kerosene, etc, we use this awesome OpenSCAD thread library from Dan Kirshner.
Download Model from thingiverse
With this file you will be able to print Gas can vent cap. with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Gas can vent cap..