medeng8
Contributor
I was hoping that was all there is to it. This: DGX Premium Center Bar w/Isolator Valve | Dive Gear Express®
The valves are the dgx premium. You would obviously need bands as well.
As to the question of overfilling, I have never had them overfilled. But I did not buy them new, so I couldn't tell you what the previous owner did. It didn't make any difference to me, I would get them cave filled like I do all my steel tanks. But that's me.