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Sflue (2108606MT) - Locking Band SCREW TOGGLE - 152mm Ø (22-150-059)

National Flues proudly presents the Sflue 152mm Locking Band Screw Toggle – a high-performance connector ideal for robust chimney flue systems. Engineered for solid fuel, gas, and oil appliances, this dependable locking band delivers secure, efficient connections while complying with HETAS and CE safety standards. Enhance your installation with this premium, high-quality chimney accessory, available across the UK.
The price you pay today £16.99
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At a Glance

    Premium 304 and 316 stainless steel construction (0.40mm thickness)
    Designed for solid fuel, gas, and oil appliances
    8-barbed twist-lock mechanism ensuring a secure, robust connection
    Fully laser welded for superior durability
    HETAS approved and CE marked for guaranteed safety
    Maintains a safe 50mm distance from combustibles
    Dense, compressed rockwool insulation (230kg/m3) for enhanced thermal performance
    Suitable for both professional installers and DIY enthusiasts
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, June 20th. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

Warranty & Returns +

All our products come with warranties and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

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We will match any price, like-for-like, on a retail basis. Give us a call if you find it cheaper and want to buy from us.

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

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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:

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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).

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Sflue 152mm Locking Band Screw Toggle (2108606MT) is engineered for excellent performance in both solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and boilers. Constructed from high-quality materials, this locking band features an outer skin made of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both with a thickness of 0.4mm. The dense, compressed rockwool insulation (230kg/m3) ensures optimal thermal performance, encapsulated within the twist-lock couplers and fully laser welded for superior durability.

This product maintains a safe distance of 50mm from combustibles and is HETAS approved and CE marked according to EN1856-1 T450 N1 D V2 L50040 G50 standards. Every part of the Sflue system is designed for easy assembly with an 8-barbed twist-lock mechanism secured by a locking band, ensuring extra strength at the joints. This versatile and reliable component guarantees a secure fit for your flue system, making it a top choice for installers and DIY enthusiasts alike.

SKU: 22-150-059

Technical Specifications
SKU22-150-059
Model2108606MT
Size152mm u00d8
Inner Material316L Stainless Steel, 0.40mm
Outer Material304 Stainless Steel, 0.40mm
InsulationCompressed Rockwool, 230kg/m3
ApprovalsHETAS, CE
Safe Clearance50mm
Installation Mechanism8-barbed twist-lock with locking band
Warranty15 Years
Fuel CompatibilityWood, Oil, Gas, Low sulphur coal
• Ensure all components are clean and free from debris before assembly. • Follow the manufacturer’s guidance closely when applying the 8-barbed twist-lock mechanism. • Maintain the recommended 50mm clearance from any combustible materials. • Secure the locking band carefully to reinforce joint strength; do not overtighten which might compromise the integrity of the twist-lock. • If in doubt, consult a professional installer to guarantee that all safety protocols are met. • Regularly inspect the assembled flue system to ensure long-term safety and performance.

Yes, the Sflue 152mm Locking Band Screw Toggle is suitable for use with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and boilers.

The outer skin of the locking band is made from 304 grade stainless steel with a thickness of 0.4mm, while the inner skin is made from 316 grade stainless steel with a similar thickness.

The insulation is compressed rockwool with a density of 230kg/m3, ensuring excellent thermal performance.

Yes, the Sflue locking band is HETAS approved and CE marked, ensuring compliance with safety and quality standards.

You must maintain a distance of 50mm from the outside of the flue to any combustible material, such as wood or plasterboard.

Sflue components are connected using an 8-barbed twist-lock mechanism, which is secured with a locking band for added strength at the joints.

Yes, the Sflue locking band is designed to be user-friendly and can be used in both professional and DIY installations.

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