…and then there were two. :) I added the regulator on the right to allow a second pressure to be set in the kegerator. I can keep beer at 10 psi or so and hard carbonated water at 30.
(Hard carbonated water? Dump a handle and a fifth of vodka into a 5-gallon keg, top off with water, and carbonate for a week. 10 psi was barely fizzy, but 30 should work.)