Propane Manifold Setup 

Why is a separate HP regulator needed for each tank? Seems it would be more economical to use a T with a pair of shutoff valves between the tanks and one single HP (or dual stage) regulator. Something I am not taking into account here?

If I have two asme tanks with this setup if I put a remote fill on one would it fill both?

Are u still selling them if so home much