These tanks are built to whip cream using a whipped cream dispenser and regulator attachment. Every single tank comes with a plastic valve to manage release of fuel and not using a regulator attachment. Tanks really should be fully vacant prior to disposal. Merchandise Attributes: With our 3.3L Nang tanks, https://nangs-delivery65432.wikimidpoint.com/5071399/the_smart_trick_of_nang_delivery_that_nobody_is_discussing