This is a great bong that fits on any printer with at least 7 inches vertical.

Make sure you print it with at least 4 layers wall thickness to prevent leaks, but if you do have any leaks after printing I would recommend using a soldering iron to melt together any small leaks.

I've used this bong countless times and its very rugged and convenient. It requires the following bowl, downstem, and grommet:

Downstem: http://www.420mercantile.com/product_info.php?cPath=32&products_id=49Bowl: http://www.420mercantile.com/product_info.php?cPath=29&products_id=397Grommet: http://www.420mercantile.com/product_info.php?products_id=59

Print and Enjoy!