I have been researching co2 regulators. Milwaukee seems the most reasonably priced. The one thing I am concerned about is, if a part goes bad you can replace it from what I have read. The threads on Milwaukee regs are their own special threads. But then I see parts offered on line for them. My thought was to get a dual port manifold, and twin bubble counters to run two tanks off the same system, or put two different difussers at opposite ends of a 6" long tank. Can someone who is using a Milwaukke reg please enlighten me