Matheson Tri Gas, 3121-580 3500 Max Inlet Press
Matheson Tri Gas, 3121-580, 3120 Series, 3500 Max Inlet Press, Regulator
A CGA fitting is the standardized system (Whenever possible, valve outlets standardized by the Compressed Gas Association are used.)for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for.