ISTA ( I-641 )Twin Gauge Pressure Reduced CO2 Regulator with Hi-Quality Solenoid + Metal Glass Bubble counter & Check valve.
Compatible with Face-Side CO2 Cylinder.
A relief valve to reduce the risk caused by high pressure.
Reduced output pressure for accurate and stable CO2 gas injection
A controller; very high quality and reliable
Hand tighten design,no tool required.
Equipped with flash light indication and bubble counter and check valve