Victor Equipment SR 250 single stage Inert (argon, argon/CO2, nitrogen, or helium) medium duty regulator.  Model # SR250D-580 mfg # 0781-0044.  This medium duty single stage regulator is ideal for welding and cutting applications.  Compact single stage construction.
Gas service: Inert Gas (argon, argon/CO2, nitrogen, or helium)