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ESAB GASARC Spec Master HPT620 Multi Stage CO2 Regulator

  • Consistent gas flow translates to superior weld results
  • Eliminate rework and downtime caused by inconsistent gas flow
  • Save money on wasted gas and rework materials
  • Built-in safety features prioritise operator well-being
  • Manage multiple gas lines with ease
  • Invest in a regulator built to last, backed by a reputable brand


Worldwide Delivery
Rated excellent on Google
Over 50 years welding expertise
Free delivery over £85 inc. VAT

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Unleash Precision Gas Control with the ESAB GASARC Spec Master HPT620 Multi Stage CO2 Regulator: Master Your Welding Workflows

Elevate your welding game with the ESAB GASARC Spec Master HPT620 Multi Stage CO2 Regulator, the pinnacle of gas control for discerning professionals. This premium regulator boasts cutting-edge technology, exceptional performance, and unparalleled versatility, empowering you to tackle demanding welding applications with confidence and precision.

Say goodbye to inconsistent gas flow and unreliable performance. The ESAB GASARC Spec Master HPT620 Multi Stage CO2 Regulator delivers unmatched precision and control, ensuring optimal gas delivery for superior weld quality, increased productivity, and reduced costs. Featuring a robust two-stage design, this regulator meticulously regulates CO2 gas pressure even as cylinder pressure falls, guaranteeing consistent gas flow throughout your entire project.


  • Six port configuration
  • Front and rear panel mounting capabilities
  • Encapsulated seat design
  • Low wetted surface area
  • Full range of inlet and outlet fittings
  • Base and side entry

What’s Included

  • Cylinder Connection
  • Cylinder Contents Gauge
  • Outlet Pressure Gauge


Model No. Part No. Description Gas
HPT622-02-07-01-01-015-00-A 3960042301 Spec-Master Two Stage 2 Gauge Cylinder Regulator 0-20bar BS 341 No.8 (Side Entry)1/4NPT Female Outlet CO2
HPT622-02-10-01-01-015-00-A 3960049300 Spec-Master Two Stage 2 Gauge Cylinder Regulator 0-50bar BS 341 No.8 (Side Entry)1/4NPT Female Outlet CO2


Additional information
Free Delivery

Free Delivery



Outlet Pressure






Fuel Type


Regulator Type

Multi Stage




Click and Collect:
Free Click and Collect with no minimum spend from our warehouse on the Empress Park, Southampton with on-site parking. Once your order has been processed, we will advise you when it is ready for pickup.  Just want advice?  No problem.  Feel free to call in to speak to one of our friendly experts.

EWS Fleet Coverage Areas: 
Southampton | Eastleigh | Winchester | Alton | Farnham | Petersfield | Havant | Hayling Island | Waterlooville | Fareham | Portsmouth | Gosport | Chichester | Arun | Worthing | New Forest | Christchurch | Salisbury | Wiltshire | Test Valley | Basingstoke and Deane | West Berkshire | Reading | Hart | Waverley | East Hampshire | East Dorset | Hampshire | Bournemouth | Poole | Lymington | Ringwood | Verwood | East Preston | Goring-by-Sea | Lancing | Shoreham-by-Sea | Steyning | Bramber | Horsham | Adur

Nationwide Delivery (all items excluding gas cylinders):
Free UK mainland (England, Scotland and Wales) delivery on orders over £85 inc. VAT.
UK mainland delivery is £7.50 inc. VAT on orders under £85 inc. VAT.
UK islands and Northern Ireland shipping costs may vary.

UK Delivery for Gas Cylinders:
Shipping costs for gas cylinders are calculated at checkout once the delivery postcode is entered.

International Delivery:
Please contact us for an accurate delivery quote.

Body Nickel Plated Brass Barstock
Bonnet Nickel Plated Brass Barstock
Piston Brass
Valve Seat PCTFE
Filter 10 Micron 316L Stainless Steel
Maximum Inlet Pressure 60 bar (870 PSI)
300 bar (4350 PSI) *
Delivery Pressure Range 20 bar (300 PSI)
50 bar (725 PSI)
Gauges 50mm (2”) Diameter
Ports 1/4” NPT Female
Temperature Range -20° C to +60° C (-4° F to +140° F)
Helium Leak Integrity 1 x 10-9 mbar l/s
Weight 2.0 kg (4.4 lb) **

*Subject to Cylinder Connection

**Cylinder connection not included

ESAB GASARC Spec Master Oxygen Regulator

ESAB GASARC Spec Master HPT620 Multi Stage CO2 Regulator

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