Welcome to WeldingMart’s premium collection of nitrogen regulators, where precision and reliability meet to provide exceptional gas control solutions. Whether you’re working in HVAC systems, welding applications, or industrial processes, our nitrogen regulators ensure consistent performance and safety. From nitrogen pressure regulators to high-pressure nitrogen gas regulators, we offer top-tier equipment that caters to professionals and hobbyists alike.
$345.98 offHarris
Harris HP8700-2500-580 Single Stage Argon/Nitrogen Regulator - 3200301
$556.00$901.98Unit price /UnavailableModel HP8700-2500-580 high pressure single stage brass Argon/Nitrogen regulator
$292.58 offHarris
Harris HP8700-1500-580 Single Stage Argon/Nitrogen Regulator - 3200300
$505.00$797.58Unit price /UnavailableModel HP8700-1500-580 high pressure single stage brass argon/nitrogen regulator
$69.16 offHarris
Harris 425-15-580 Single-Stage Argon/Helium/Nitrogen Regulator - 3000837
$137.87$207.03Unit price /UnavailableHarris 425-15-580 Single-Stage Argon/Helium/Nitrogen Regulator - 3000837
$336.10 offHarris
Harris HP8700-4500-680 Single Stage Argon/Nitrogen Regulator - 3200327
$660.87$996.97Unit price /UnavailableModel HP8700-4500-680 ultra high-pressure single-stage brass barstock argon/nitrogen regulator
$34.31 offHarris
Harris 355-2Ar/He-580 Compact Argon/Helium/Nitrogen Compensated Flowmeter Regulator - 3100204
$228.87$263.18Unit price /UnavailableModel 355-2Ar/He-580 compact pressure compensated flowmeter regulator for use with Argon (He)
$51.16 offHarris
Harris 9296-125-580 General-Purpose Two Stage Argon/Helium/Nitrogen Regulator - 3302608
$460.41$511.57Unit price /UnavailableModel 9296-125-580 general purpose heavy duty neoprene diaphragm two-stage regulator
$344.38 offHarris
Harris HP8700-3000-680 Single Stage Argon/Nitrogen Regulator - 3200326
$595.00$939.38Unit price /UnavailableModel HP8700-3000-680 ultra high-pressure brass single stage argon/nitrogen regulator
$393.07 offHarris
Harris HP8700-6000-677 Single Stage Argon/Nitrogen Regulator - 3200323
$632.00$1,025.07Unit price /UnavailableModel HP8700-6000-677 ultra high-pressure up to 7500 psig inlet single-stage brass barstock argon/nitrogen regulator
$37.14 offHarris
Harris 2561-125C-580 Two Stage Argon/Helium/Nitrogen Regulator - 3300912
$334.24$371.38Unit price /UnavailableModel 2561-125C-580 economical medium-to-heavy duty two-stage argon/helium/nitrogen regulator
$211.21 offHarris
Harris 3500-600-580 High-Pressure Single Stage Argon/Helium/Nitrogen Regulator - 3003541
$654.87$866.08Unit price /UnavailableModel 3500-600-580 high-pressure, high-flow single-stage Argon/Helium/Nitrogen regulator
$99.70 offHarris
Harris HP8700-4500-677 Single Stage Argon/Nitrogen Regulator - 3200322
$897.27$996.97Unit price /UnavailableModel HP8700-4500-677 ultra high-pressure up to 7500 psig inlet single-stage brass barstock argon/nitrogen regulator
$62.33 offHarris
Harris 9200-125-580 Two Stage Argon/Helium/Nitrogen Regulator - 3302218
$560.95$623.28Unit price /UnavailableModel 9200-125-580 general-purpose heavy duty neoprene diaphragm two-stage regulator
$191.93 offHarris
Harris 3500-400-580 Single Stage Argon/Helium/Nitrogen Regulator - 3003540
$593.87$785.80Unit price /UnavailableModel 3500-400-580 high-pressure, high-flow single-stage Argon/Helium/Nitrogen regulator
$60.51 offHarris
Harris 25GX-145-580 Single Stage Argon Helium Nitrogen Regulator - 3000540
$93.87$154.38Unit price /UnavailableHarris - Model 25GX-145-580 best value medium-to-heavy duty single stage regulator
$344.38 offHarris
Harris HP8700-3000-677 Single Stage Argon/Nitrogen Regulator - 3200321
$595.00$939.38Unit price /UnavailableModel HP8700-7500-677 ultra high-pressure up to 7500 psig inlet single-stage brass barstock argon/nitrogen regulator
$58.88 offHarris
Harris 9296-250-580 General-Purpose Two Stage Argon/Helium/Nitrogen Regulator - 3302609
$529.89$588.77Unit price /UnavailableModel 9296-250-580 general purpose heavy duty neoprene diaphragm two-stage regulator
$51.16 offHarris
Harris 9296-50-540 Two Stage Argon/Helium/Nitrogen Regulator - 3302607
$460.41$511.57Unit price /UnavailableModel 9296-50-580 general purpose heavy duty neoprene diaphragm two-stage argon/helium/nitrogen regulator
$117.96 offHarris
Harris 9235-350-580 Manifold Two Stage Argon/Helium/Nitrogen Regulator - 3302302
$1,061.62$1,179.58Unit price /UnavailableModel 9235-350-580 high-flow heavy duty manifold two-stage argon/helium/nitrogen regulator
$74.17 offHarris
Harris 3500-600-580 Single Stage Argon/Helium/Nitrogen Regulator - 3003539
$667.53$741.70Unit price /UnavailableModel 3500-600-580 motorsports high-pressure, high-flow single-stage Harris 3500-600-580 Single Stage Argon/Helium/Nitrogen Regulator - 3003539 regulator
$200.49 offHarris
Harris 3500-200-580 High-Pressure Single Stage Argon/Helium/Nitrogen Regulator - 3003511
$419.00$619.49Unit price /UnavailableModel 3500-200-580 high-pressure, high-flow single-stage Argon/Helium/Nitrogen regulator
$53.38 offHarris
Harris 9200NC-5-580 Low Delivery Argon/Helium/Nitrogen Regulator - 3302284
$480.39$533.77Unit price /UnavailableModel 9200NC-5-580 two-stage low delivery pressure regulator for non-corrosive and ultra-low delivery pressure gases.
$51.16 offHarris
Harris 9296NC-15-580 General-Purpose Two Stage Argon/Helium/Nitrogen Regulator - 3302606
$460.41$511.57Unit price /UnavailableModel 9296NC-15-580 general purpose heavy duty neoprene diaphragm two-stage argon/helium/nitrogen regulator with neoprene seat
$62.33 offHarris
Harris 9200-50-580 Two Stage Argon/Helium/Nitrogen Regulator - 3302217
$560.95$623.28Unit price /UnavailableModel 9200-50-580 general-purpose heavy duty neoprene diaphragm two-stage regulator
$200.49 offHarris
Harris 3500-125-680 Single Stage Argon/Helium/Nitrogen Regulator - 3003507
$419.00$619.49Unit price /UnavailableModel 3500-125-680 high-pressure, high-flow single-stage Argon/Helium/Nitrogen regulator
$165.22 offHarris
Harris 3500-125-580 Single Stage Argon/Helium/Nitrogen Regulator - 3003501
$395.00$560.22Unit price /UnavailableModel 3500-125-580 high-pressure, high-flow single-stage Argon/Helium/Nitrogen regulator
$37.82 offHarris
Harris 601-400-580 HVAC Purging Single Stage Argon/Nitrogen Regulator - 3000648
$76.87$114.69Unit price /UnavailableHarris - Model 601-400-580 HVAC purging single stage regulator with 1/4 flare equipped with rubber gauge guards (Clamshell)
$73.03 offHarris
Harris Model HP722 Regulator Argon/Helium/Nitrogen - 722-250-580-B-1 - 722250580B1
$657.25$730.28Unit price /UnavailableThis series of two-stage, ultra high-purity regulators is designed for non-corrosive analytical and process applications where precise flow is not critical. A specially designed, convoluted, stainless steel diaphram provides good regulating performance and maxium putity integrity. These regulators are capable of withstanding an internal vacum and can be provided with a diffusion-resistant valve.
![Harris 330-500-580 Single-Stage Argon/Nitrogen Regulator - 3001098 - WeldingMart.com]()
$201.79 offHarris
Harris 330-500-580 Single-Stage Argon/Nitrogen Regulator - 3001098
$325.87$527.66Unit price /UnavailableModel 330-500-580 liquid cylinder gaseous withdrawal heavy duty single-stage argon/nitrogen regulator
$49.52 offHarris
Harris 330-350-580 Single Stage Argon/Nitrogen Regulator - 3001094
$445.65$495.17Unit price /UnavailableModel 330-350-580 liquid cylinder gaseous withdrawal heavy duty single-stage argon/nitrogen regulator
$69.16 offHarris
Harris 425-200-580 Premium Single Stage Argon/Helium/Nitrogen Regulator - 3000773
$137.87$207.03Unit price /UnavailableModel 425-200-580 premium heavy duty single-stage argon/helium/nitrogen regulator
$69.16 offHarris
Harris 425-125-580 Premium Single-Stage Argon/Helium/Nitrogen Regulator - 3000767
$137.87$207.03Unit price /UnavailableHarris 425-125-580 Premium Single-Stage Argon/Helium/Nitrogen Regulator - 3000767
$142.18 offHarris
Harris 425-125A-580 Premium Single Stage Argon/Helium/Nitrogen Regulator - 3000765
$230.87$373.05Unit price /UnavailableModel 425-125A-580 premium heavy duty single-stage argon/helium/nitrogen regulator
$44.69 offHarris
$402.18$446.87Unit price /UnavailableModel HP405-500-580-B nitrogen high-purity electroless nickel-plated brass liquid cylinder regulator, 500 psi, 1/4 in. FNPT port
$54.23 offHarris
$488.10$542.33Unit price /UnavailableModel HP702-50P-580-D nitrogen high-purity electroless nickel-plated brass two-stage cylinder preset regulator, 50 psi, 1/4 in. FNPT port
$62.99 offHarris
Harris 9200NC-2-580 Low Delivery Argon/Helium/Nitrogen Regulator - 3302292
$566.91$629.90Unit price /UnavailableModel 9200NC-2-580 two-stage low delivery pressure regulator for non-corrosive and ultra-low delivery pressure gases.
$57.36 offHarris
Harris 9200NC-1P-580 Low Delivery Argon/Helium/Nitrogen Regulator - 3302291
$516.27$573.63Unit price /UnavailableModel 9200NC-1P-580 two-stage low delivery argon/helium/nitrogen regulator for non-corrosive and ultra-low delivery pressure gases.
$83.69 offHarris
Harris HP705-125-580 120 Two Stage Electrically Heated Argon/Nitrogen Regulator - 7051255801
$753.21$836.90Unit price /UnavailableThis regulator can be used with gases that encounter the Joule-Thompson Effect created in presssure drops across the internal orifices in a regulator. The regulator will maintain the gas in the vapor phase by supplying heat at the regulator's internal orifice while providing a constant delivery pressure.
$46.90 offHarris
$422.08$468.98Unit price /UnavailableHigh-purity chrome-plated brass liquid cylinder argon/helium/nitrogen regulator.
$130.83 offHarris
Harris 8700SS-6000-677 HP Single Stage Argon/Nitrogen Regulator - 3200728
$1,177.50$1,308.33Unit price /UnavailableDesigned for a wide range of pressure settings, these single-stage regulators are reccomended for use in petroleum field applications, research labratories for hydrogenation, catalytic reduction, accelerated age testing, calorimetric testing, component testing, and pressure charging applications. These regulators feature a rugged brass piston, which provides increased safety and reliability at high delivery pressures. A 10 micron inlet filter protects internal components.
$126.36 offHarris
Harris 8700SS-1500-580 HP Single Stage Argon/Nitrogen Regulator - 3200707
$1,137.22$1,263.58Unit price /UnavailableDesigned for a wide range of pressure settings, these single-stage regulators are reccomended for use in petroleum field applications, research labratories for hydrogenation, catalytic reduction, accelerated age testing, calorimetric testing, component testing, and pressure charging applications. These regulators feature a rugged brass piston, which provides increased safety and reliability at high delivery pressures. A 10 micron inlet filter protects internal components.
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Harris HP8700SR-1500-580 Single-Stage Argon/Nitrogen Regulator - 3200427
$725.00Unit price /UnavailableModel HP8700SR-1500-580 ultra high-pressure up to 7500 psig inlet single-stage brass barstock argon/nitrogen regulator
