3/8" NPT to 1/4" NPT
thingiverse
I hope , will help you
Download Model from thingiverse
With this file you will be able to print 3/8" NPT to 1/4" NPT 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 3/8" NPT to 1/4" NPT.