Free Next-Day UK Delivery on Orders Over £50 | BS EN ISO 2503 Certified
Professional brass dual-line argon regulator with two clear acrylic flowmeter tubes, dual pressure gauge, independent adjustment valves and barbed gas outlets, standing on a workshop bench beside TIG welding equipment and a welding helmet.

Dual Flow Argon Gas Regulator for Precision Welding

Run back-purge lines and main TIG torches independently from a single UK bottle without pressure drops or sugar craft.

4.7 / 5.0

NotTool

NotTool
4.7 (150 reviews)
£81.80RRP £99.5818% OFF

£81.80 inc. VAT (£68.17 ex. VAT)

Only 16 left — 36 ordered this week

Professional UK dual-flow argon regulator for clean, sugar-free stainless steel welds. Run back-purge and TIG lines independently from a single cylinder.

1,350+

Happy Customers

4.7★

Avg Rating (150+ reviews)

92%

Satisfaction Rate

🇬🇧

Loved Across Britain

Fabricator Reviews

Compiled from marketplace feedback and product research signals.

Verified Purchase

As a pipe fabricator working on offshore stainless manifolds, back-purging is non-negotiable. This NotTool dual flowmeter regulator eliminated the need for us to drag two heavy argon bottles onto the shop floor. Flow control is steady as a rock.

Callum MacLeod, Aberdeen
Verified Purchase

Replaced an old Y-splitter setup that was leaking gas every week. The independent needle valves on this dual regulator mean I get zero pressure surge when I strike the arc while purging. Top quality brass construction.

Gareth Davies, Swansea
Verified Purchase

We build custom titanium exhaust systems for motorsport teams. Sugared root welds mean failed headers. The NotTool regulator lets us fine-tune purge rates down to 3 L/min cleanly. Best £60 spent in the workshop.

Marcus Vance, Silverstone
Verified Purchase

Cracking piece of kit. Solid brass threads fit our BOC bottles perfectly. Only minor thing is the twin flow tubes make it slightly taller on the cylinder, but performance is 10/10.

Declan O'Connor, Manchester
Verified Purchase

Saved me hundreds on monthly bottle rental fees by allowing me to run both TIG torch and purge line off one single bottle. Next day delivery to West Midlands was brilliant.

Sanjay Patel, Birmingham
Verified Purchase

Much better than the cheap alloy regulators on eBay. Actual forged brass body with BS341 threads that lock up seal-tight. Clear L/min markings.

Liam Thorne, Bristol

Free UK Delivery

Next-day dispatch from our central UK warehouse on all orders

2-Year UK Warranty

Full commercial repair or replacement warranty backed in Great Britain

30-Day Free Returns

Hassle-free 30-day return policy with prepaid UK shipping labels

Dual Independent Flow Tubes

Eliminate sugar craft on stainless steel pipe with twin 0-30 L/min flow control

Setup & Operation Guide

How to use
  1. Inspect cylinder valve thread and NotTool regulator BS341 No.3 inlet stem for debris or oil before attachment.
  2. Secure the regulator tightly to the cylinder valve using a standard 30mm spanner, ensuring vertical tube alignment.
  3. Connect main TIG torch hose to Outlet A and the back-purge line to Outlet B using the supplied 3/8" BSP hose tail fittings.
  4. Open the main cylinder valve slowly; check the inlet pressure gauge to confirm bottle pressure.
  5. Adjust individual needle control valves on each flowmeter tube until the floating steel ball aligns with your desired L/min flow rate.

Trusted by Over 4,800 UK Fabricators & Motorsport Welders

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Frequently Asked Questions

Founded in Sheffield, NotTool was created by UK welding engineers who grew tired of sub-standard gas gear, leaky Y-splitters, and over-priced multi-regulator setups. We recognised a fundamental gap in the UK market: fabricators working on stainless steel exhaust systems, pressure vessels, and architectural pipework needed a reliable, single-cylinder solution for dual shielding gas lines without suffering pressure drops or sugared weld roots.

Every NotTool regulator is engineered with heavy-duty forged brass bodies, impact-resistant polycarbonate flow tubes, and precision needle valves calibrated specifically for pure Argon and Argon/CO2 shielding gases. Compliant with BS EN ISO 2503 and pressure tested to ISO 5171 standards, our gear withstands the daily rigours of commercial fabrication shops and mobile welding rigs across Great Britain.

We cut out middleman distributor markups to supply UK metalworkers direct from our central Midlands warehouse. Supported by top-tier technical guidance and a 2-year replacement warranty, NotTool ensures your TIG torch and back-purge lines deliver pristine, oxide-free welds on every single pass.

Why UK Customers Love Us

Our products are designed and supported in the UK, ensuring superior quality and fast tracked delivery from our British warehouse. We offer free UK delivery on all orders, eco-friendly packaging to reduce carbon footprint, and warm, direct customer service. Every order is backed by a generous 30-day returns policy under the UK Consumer Rights Act 2015 — you are always protected.

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NotTool

NotTool manufactures industrial-grade gas regulation equipment for UK fabricators, motorsport engineers, and precision welders. Built to rigorous BS EN ISO 2503 standards, our dual flow argon regulators deliver leak-free gas control and independent back-purging directly from a single standard UK bottle.

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