Review on SPARC Premium Dual Output CO2 Regulator CGA320 - 2 Year USA Warranty - Ideal for Beer and Kombucha Brewing by Katie Ortiz

This product does exactly what it promises. It's nice and shiny and the pressure adjustment knobs are very easy to turn. When first starting, you may need to turn the knob in the + direction a few turns before the pressure starts to change. When I left it overnight and checked again in the morning, the pressure dropped from the set 10psi to 7psi. It may have something to do with the hysteresis of the button, or it isn't really giving off any positive pressure. This means if you set it to 10psi and then accidentally lower the knob slightly, the pressure will not be corrected until you bleed some CO2 from the system. My 5/16" ID gas line wasn't very tight. They look like 1/4" fittings but work with a hose clamp.