I've been researching where to buy these, but have come up empty. Unlabeled are easy to find, (I even used the BA search!), but the label gets tricky. In IA, the warning label is required. Any help would be appreciated!
you can often just print out the gov warning and tape it to the growler... that's what at least 1 brewery along with another growler fill place here in VA does/suggests...
a quick google search shows these: https://www.google.com/search?q=gov...GKnl0gHo_YH4BA&ved=0CDcQsAQ&biw=1277&bih=1040