Note that
once you go beyond one tank the rest of the tanks must have an
on/off valve on them.
Remember this is just how you can put tanks on
to a Vm that is why there are no remotes setups
Note these are for a Vm68 you could all so do
this to an VM EXC model but you would need to take the expansion
chamber off first and if you had a Vm Magnum it would take less
adapters since the back bottle set is already there.
All parts can be found online