Fan connectors
thingiverse
This is a versatile adapter connecting a four-inch computer fan to a 2.5-inch flexible tube. Initially available in bright yellow, subsequent versions are offered in vibrant green.
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With this file you will be able to print Fan connectors 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 Fan connectors.