so whats that for is that the g7 and the reg or whatdepends if the reg on the bottle is a low pressure reg or not mate. your better option to be honest would be the PM5 i have for sale its easier to use and will run on a high pressure or low pressure i will sell u the PM5 with out the virtue board and with the stock reg on it for £125. it comes with manual and stuff so will be better for u if your new to it.