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Hi Lo HL3500 FabMaster Elite High Pressure 300bar Oxygen Regulator

SKU: HL050167-1
  • Deliver oxygen at the exact pressure required for your application, optimising performance and minimising waste
  • Dual gauges and robust construction prioritise operator safety and minimise the risk of malfunctions
  • Experience smooth and efficient operation with effortless pressure adjustment and clear pressure monitoring
  • The HL3500’s durable build ensures long-lasting performance, minimising interruptions and maximising productivity
  • Invest in a regulator manufactured under the highest quality standards, providing peace of mind for even the most critical tasks

£499.31 ex. VAT     £599.17 inc VAT

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Rated excellent on Google
Over 50 years welding expertise
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Master high-pressure oxygen delivery with the Hi-Lo HL3500 FabMaster Elite, the industry’s benchmark for unparalleled control and regulation. Engineered for professionals in critical environments, the HL3500 empowers you to tackle even the most challenging oxygen flow requirements with unwavering confidence.

The Hi-Lo HL3500 FabMaster Elite – oxygen regulation excellence for professional users who demand the very best.


  • Conquer High-Pressure Demands: Handle a maximum inlet pressure of 300 bar (4350 psi) with ease, ensuring seamless performance in even the most pressurised applications
  • Unmatched Accuracy and Readability: Dual high-contrast gauges, conforming to BS EN ISO 2503, provide crystal-clear monitoring of both cylinder pressure and delivery pressure for optimal safety and control
  • Built to Endure: Rugged brass bar stock construction ensures the HL3500 thrives in harsh environments and rigorous use. Withstands the toughest industrial settings without compromising on performance.
  • Guaranteed Quality: Manufactured under BS EN ISO 9001 standards, the HL3500 is built to meet the most stringent international quality requirements. Experience peace of mind knowing you’re using a regulator that prioritises safety and reliability.


  • Chemical Plants: Ensure precise oxygen flow for critical chemical processes, guaranteeing consistent reaction conditions
  • Steel Fabrication: Achieve clean, high-quality cuts and welds with meticulously controlled oxygen delivery
  • Oil and Gas Refineries: Maintain optimal oxygen supply for various industrial applications within refineries, adhering to strict safety protocols
  • Demolition and Construction: Master oxygen control for efficient cutting and brazing tasks in demanding environments
  • Hyperbaric Chambers: The HL3500’s high-pressure capabilities make it suitable for specific applications in hyperbaric chambers, subject to professional guidance and regulations


Inlet connection: G5/8 BSP RH

Outlet connection: G3/8 BSP RH

Pressure gauges conforms to BS EN 5171

Manufactured under BS EN ISO 9001



Additional information
Brand Hi Lo
Entry Side
Fuel Type Oxygen (O2)
No. of Gauges 2 Gauges

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.

Hi Lo HL3500 FabMaster Elite High Pressure 300bar Regulator

Hi Lo HL3500 FabMaster Elite High Pressure 300bar Oxygen Regulator

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£499.31 ex. VAT     £599.17 inc VAT
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