The Intertap SS can be turned into a Growler Filler with the use of this spout.
The Growler Filler Spout has a 13mm barb which you can attach hose to so you can fill your growler from the bottom up to minimise foaming. Simply un-screw the regular nozzle and screw on the Growler Filler Spout with hose attached and use as you would a growler filler tap.
Note: This item is the Growler Filler Spout only. To make a complete unit you will also need to purchase a tap, tap handle and a shank.