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 9/16-18R outlet fittings are standard. SEE adaptor for "mini" 3/16"(4mm) gas hoses. Gas Regulator AR / Co2 Dual Guage CGA580 X 5/8-18RHT Output 721-0002Elsewhere: $ 78.00Welding Direct Price Additional discounts may be available for volume orders. To speak with a customer service representative for details, call, toll free, 1-866-568-3170 . Welding-Direct.com is in no way affiliated with the above named manufacturers. References to brand name machines, torches or industry standard part numbers is for our cutomer's convenience only. All items listed for sale are made to perform better-than or equal-to original equipment parts and many are supplied by the manufacturers to the OEMs. All rights reserved. Details on our Free Delivery policy may be found on our Information page.