nrl beer growler 2lGet your hands on your team's officially licensed beer growler! #1 Beer Growler 2L is a bottled container used to store beer, Usually stainless steel or glass. Most breweries will sell their own beer growlers which enables you to bring home some of your favorite tap beer! Unopened growlers can last up to a week and opened growlers should ideally be finished off the same night as they are opened but can also last up to 48 hours. The Stubby Club Beer