Got a too-good-to-pass-up deal on four Aqualung 3.5HP steel tanks. Been reading up on them and I understand they do not take the yoke inserts. That's ok, I've been changing over to DIN on my regs and some of my other tanks have the yoke inserts so I can easily remove them. My question is about filling these tanks. One of my regular places for filling is at the local fire station but they only have a yoke fill attachment. Would the DGX DIN fill adapter work for me with these tanks? DGX Premium DIN Fill Adapter or do I need something else?