Abstract: A universal gas pressure adjustment tool for a plurality of gas pressure regulators each of which is connected in line with a pressurized natural gas supply conduit and having a pressure adjusting member which adjustably controls the outlet gas pressure of gas exiting from the regulator. Each of the adjusting members within each regulator have a different structure for engagement with, and rotatable moveable by, a particular different adjustment tool drive end configured for engagement with the particular adjusting member to effect regulation of the gas outlet pressure. The adjustment tool has an elongated body having a plurality of different end configurations, each of which is structured for mating substantially coaxial alignment and engagement with, and for axial rotatable adjustment of, a particular adjusting member. Each of the end configurations is readily accessible for use with one particular corresponding adjusting member without interference from any of the other end configurations.