SMC ARG20-N02G1H-X2230 regulator, modular f.r.l. w/gauge

regulator, modular f.r.l. w/gauge regulator, gauge-handle spl

Note that the ARG-B has been released as a replacement for the ARG.  While the ARG is still supported with inventory and no obsolescence date has been announced, we strongly encourage the use of the ARG-B for new applications