[APD] U.S. General CO2/Argon Flowguage Regulator

[Rob Griffin <robgriffpokefan at yahoo_com>]

Does anyone have experience with U.S. General's two gauge CO2 regulator #4725?  I e-mailed
the customer service listed on the distributor Harbor Freight's web site in order to determine
if it has CGA 320 fittings.  This is the response I received (I apologize for the all caps - that's the
 way they responded):
 

THE ARGON REGULATOR THREAD IS .960-14 RH N.G.O.

THE SUPPLIED ADAPTER IS .830-14 RH N.G.O.                                     

THE BARBED END OF THE R8 IS ATTACHED TO THE OUTLET HOSE FROM THE 

REGULATOR WITH A HOSE CLAMP. THE OTHER END OF THE FITTING CONNECTS 

TO THE GAS LINE(A SMALL PLASTIC TUBE) THAT GOES INTO THE WELDER.                                                                                   

BOTH GAUGES HAVE DUAL SCALES.                                                 

ARGON: 8 TO 50 CFM                                                            

       4 TO 25 LPM                                                            

CO2:  100 TO 4,000 PSI                                                        

      1500 T0 2,800 KPA                                

 
My questions are (1) what adapters would one need to use this regulator with a CGA 320 CO2 tank
and (2) what does "1500 to 2,800 KPA" related to the output pressure translate into PSI?
 
Any insight into this regulator will be appreciated.
 
Thanks,
 
Rob

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