I just purchase a new regulator from My Reef Creations, it is in the sponsor section and the last add. I purchased the $120 plus the separate bubble counter, I like the large bubble counter and think the adjustment seemed easier than the less expensive one which I had for 1.5 yrs and it failed.
Sorry not to mention brand names but the two pictured in my reef creations are the two I owned. The more expensive one is supposed to last longer. It also appears easier to adjust.
Ed.