Overflow box
thingiverse
The tank's dimensions called for a slightly larger overflow on our 18 gallon long saltwater setup, and so far it has performed perfectly.
Download Model from thingiverse
With this file you will be able to print Overflow box 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 Overflow box.