These tanks are built to whip product using a whipped cream dispenser and regulator attachment. Each individual tank comes with a plastic valve to control launch of fuel and not using a regulator attachment. Tanks need to be fully vacant just before disposal. Product or service Features: SupremeMax one.1L 680g https://nangsdelivery85714.blogdun.com/34912522/5-tips-about-nang-delivery-melbourne-you-can-use-today