Intertap™ GROWLER Filler
The Growler FIller Spout has a 13mm barb which you can attach some hose so you can fill your growler from the bottom up to minimise foaming.
Simply un-screw the Intertap regular nozzle and screw on the Growler Filler Spout. Attach your own hose 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 an Intertap tap, tap handle and a shank, links for these are below.