This industrial duty solid brass ar/co2 gas regulator provides accurate regulation of both argon and/or co2 shielding gases and tank volume in most commercial and industrial applications. Large 2″ diamater gauges for easy reading of tank pressure and flow rate. 0-50 cfh, argon or carbon dixoide(co2) flow. Body machined from class “a” bar stock. Internal safety pressure relief design. Large adjustment knob for “light touch” flow settings. Sintered bronze inlet filter. Cga 580 inlet connection & 5/8-18rht outlet fittings are standard.