These tanks are intended to whip cream using a whipped product dispenser and regulator attachment. Every single tank comes along with a plastic valve to manage release of gas and not using a regulator attachment. Tanks should be entirely empty previous to disposal. Product Attributes: With our three.3L Nang tanks, https://arthuryywqn.bloggip.com/34257263/an-unbiased-view-of-3-3l-nang-cylinders