Kegco LHU5S-3 Elite series three Product secondary CO2 draft beer regulator has a bold design with elite functionality. Secondary regulators are used when you are attempting to dispense two or more kegs off of the same CO2 tank at different pressures. This secondary regulator has three manual pressure release valves and internal pressure relief valves that release pressure at 55-65 psi, three large pressure adjustment knobs, and three brackets that allow it to be mounted to a wall or the inside of the keg refrigerator. In order to use This secondary regulator, you will still need a primary regulator with one output that connects to a secondary using a piece of air line. The LHU5S-3 has three 5/16" Barbs and three gauges that indicate how much CO2 pressure is inside of each keg.