Free Delivery over £100+ 5on Trustpilot Browse our popular stoves Fast Mainland UK Delivery Buy stoves with install packs Call 01670 206 999 for help

Sflue Black (2108606MTB) - Locking Band SCREW TOGGLE - Ø 152 (42-150-059)

The Sflue Black Locking Band Screw Toggle Ø 152 by National Flues is engineered for excellence in securing and sealing your chimney systems. Designed for solid fuel, gas, and oil appliances, this premium chimney accessory offers a reliable, robust solution with its double-layered stainless steel construction, integrated rockwool insulation, and secure twist-lock mechanism. Read more...
Now only £15.99
Give us a call if you find it cheaper and we'll normally price match.
  • Fast deliveryMonday, November 17th*
  • Best PriceCall us to beat any price you found online.
  • Secure checkoutCard· Google/Apple Pay· Klarna· Paypal

 

Payment Options

At a Glance

  • Robust dual-layer stainless steel construction (304 outer, 316L inner, both 0.4mm thick)
  • Integrated compressed rockwool insulation for superior thermal efficiency
  • Designed for solid fuel, gas, and oil appliances
  • HETAS approved and CE marked ensuring top safety standards
  • Secure 8-barbed twist lock mechanism for reliable joint integrity
  • Comes with unbarbed female couplers on elbows and 135° tee branches for added convenience

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

We Won't Be Beaten On Price

At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:

  • Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
  • Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
  • Operational Efficiency: We have streamlined processes to reduce overhead.

Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).

“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.

Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The Sflue Black Locking Band Screw Toggle Ø 152 (2108606MTB) is designed for use with solid fuel, gas, and oil appliances, including wood stoves, gas coal effect fires, and boilers. This sturdy locking band provides extra strength to your chimney flue system, ensuring that all joints are secure. Constructed with an outer skin of 0.4mm thick 304-grade stainless steel and an inner skin of 0.4mm thick 316-grade stainless steel, it offers superior durability and corrosion resistance.

The integrated rockwool insulation, compressed to a density of 230kg/m3, is encapsulated within twist-lock couplers for maximum thermal efficiency and safety. This product holds a HETAS approval and CE marking, meeting the highest standards of safety and performance. The recommended distance to combustibles is 50mm, ensuring safety in all installations.

The Sflue system utilizes an 8-barbed twist lock mechanism, providing a secure and reliable connection between chimney parts.

SKU: 42-150-059

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

Technical Specifications
SKU42-150-059
Model2108606MTB
SizeØ 152
Materials304 Stainless Steel, 0.4mm thick, 316L Stainless Steel, 0.4mm thick
InsulationCompressed Rockwool (230kg/m3)
Mechanism8-barbed twist lock
ApprovalsHETAS, CE
Distance To Combustibles50mm
Warranty15 Years manufacturing defect warranty, 2 Years paint warranty
• Ensure a minimum distance of 50mm to all combustible materials when installing the Sflue Black Locking Band. • Securely tighten the component using the integrated 8-barbed twist lock mechanism and confirm that all connections are properly seated. • Follow the manufacturer's installation instructions carefully, and consider professional assistance when in doubt for optimal safety and performance. • Regularly inspect the installation to maintain its integrity and safety standards.

The Sflue Black Locking Band is suitable for solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, oil and gas boilers.

The outer skin is made from 0.4mm thick 304-grade stainless steel, and the inner skin is made from 0.4mm thick 316-grade stainless steel. It also includes compressed rockwool insulation with a density of 230kg/m3.

Yes, the Sflue Black Locking Band is CE marked and also holds HETAS approval.

The recommended distance to combustibles is 50mm from the outside of the flue to any combustible material.

The Sflue components are secured together using an 8-barbed twist lock mechanism and a locking band, ensuring a strong and reliable connection.

Yes, it is designed to be used with Sflue elbows and 135° tee branches, providing extra strength at these joints.

Rockwool insulation offers excellent thermal efficiency and fire resistance, ensuring maximum safety and energy conservation within the chimney system.

 

Call the Experts   8am-5pm
👀 6 people watching this