These brass CO2 regulators are preset and NON-adjustable at the pressure listed. The piston style construction delivers consistent and dependable outlet pressure, over diaphragm style counterparts . Another nice feature is the size , these are very compact.
Includes small diameter Hi pressure gauge that reads bottle pressure. A low pressure gauge is not required , or recommended as they are very sensitive and prone to failure due to vibration .
This regulator has one 1/4" NPT outlet port.