We don't even know what type of valve your tank has. Post some pic of you valve would help. Some tanks have din valve, some one yoke valve. Some have quick disconnect. best and easiest valve are the ones with quick disconnect. The yong yeng comes with quick disconnect. All you have to do is connect the female to male. Of you have a din or yoke then you need to buy a fill station for those valve. They run for $50 to $100 depends on brands and where you get it.