First off, packing cane in great condition and seems to be well built. I currently have a cheap keggermeister kegerator with basic Chinese parts. A common lroblem of mine was that any psi over 4 was pouring all foam. Hence, the reason I really wanting a flow control instead of balancing with new lines. Upon removing the old spout there was a huge packing spring that neither the manual or any site said there would be. There was also a packing spring in the coupler. Once removed and adding the new spout I have so far had no foam issues and the flow control is great for quickly balancing my lines for better back pressure. If you have a cheap kegerator I would unhook the spout it came with and make sure there isn’t a huge spring in it. This is not supposed to be there and I believe to be most of my flaming issues since this would greatly agitate the beer. Overall, a great oroduct and would definitely recommend it.