Micro Matic Secondary Quadruple CO2 Regulator (60 PSI) 
A Micro Matic secondary pass through regulator with four outputs and gauges.
The gauges read 60 PSI with a pressure relief set to 55 to 65 PSI.
All the inlets and outlets have 3/8" OD barbs, and the outlets are shut-off valves.
The bodies are brass with aluminum bonnets.