sorry i totally forgot that i posted here.
if i wanted to try this reducer for cheap, would you think that all i need is this: http://www.ebay.com/itm/Easy-Valve-Filling-Chamber-for-Volcano-Classic-Digital-Vapor-Top-Bowl-/222177161935?hash=item33baca72cf:g:RUAAAOSwwpdW6X2x
plus the little...