Secondary regulators are used when you are attempting to dispense two or more kegs off of the same Co2 tank. A secondary regulator will allow you to regulate the pressure of each keg individually.
You still need a primary regulator that then connects to the secondary with a piece of air line. Each secondary regulator has its own shut off valve and adjustment pressure adjustment knob. Secondary regulators are best mounted to a wall or the inside of the refrigerator.
Secondary CO2 or Mixed Gas Regulator
Wall mount bracket
Performance: 1 Pressure / 1 Keg
Output Pressure Gauge: 0-60 PSI
Outlet Barb: 3/8" O.D. with shut-off
Built for durability: forged brass body, accurate machining, chrome plated finish
Nickel-plated valve seats for high corrosion resistance
Constant pressure supply at high output flow rates
Easy to use dial knob for pressure adjustment
1161 Premium Secondary Co2 Keg Beer Regulator Reviews