Sflue Black (2108605MTB) - Locking Band SCREW TOGGLE - Ø 127
At a Glance
- - HETAS approved and CE marked
- - Durable construction with 316L and 304-grade stainless steel
- - Compressed rockwool insulation for excellent thermal resistance
- - Easy installation with an 8-barbed twist-lock mechanism
- - Reinforces chimney flue joints for added safety
- - Suitable for solid fuel, woodstove, oil, gas and low sulphur coal appliances

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: [email protected]
- Info
- Specs
- Install
- FAQs
The Sflue Black (2108605MTB) Locking Band SCREW TOGGLE Ø 127 is a versatile and essential component for chimney flue systems, designed for use with both solid fuel and gas/oil appliances such as woodstoves, gas coal-effect fires, and oil and gas boilers. This locking band is constructed with a 304-grade stainless steel outer skin and a 316-grade stainless steel inner skin, both 0.4mm thick, ensuring superior durability and resistance to high temperatures. The insulation consists of compressed rockwool with a density of 230kg/m³, encapsulated within twist-lock couplers and fully laser welded for enhanced safety.
Certified by HETAS and CE marked, it complies with designation number EN1856-1 T450 N1 D V2 L50040 G50, guaranteeing top-tier performance and safety standards. Installation is straightforward, with an 8-barbed twist-lock mechanism that keeps components securely in place using the Locking Band. It is crucial to maintain a 50mm distance from the flue to any combustible materials.
SKU: 42-125-059
Technical Specifications | |
---|---|
SKU | 42-125-059 |
Model | Sflue Black (2108605MTB) |
Designation | EN1856-1 T450 N1 D V2 L50040 G(50) |
Inner Material | 316L Stainless Steel (0.40mm) |
Outer Material | 304 Stainless Steel (0.40mm) |
Insulation | Compressed Rockwool (230kg/mu00b3) |
Fuels | Wood, Oil, Gas, Low sulphur coal |
Clearance | 50mm from combustibles |
Warranty | 15 Years manufacturing defect, 2 Years paint |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. If you need faster stove or fireplace delivery please give us a call. We can often 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. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.
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National Flues Ltd Verdict
The Sflue Black Locking Band SCREW TOGGLE Ø 127 is a reliable and robust solution for securing your chimney flue system. At National Flues, we pride ourselves on swift nationwide delivery and exceptional service for both retail and trade customers. Rarely beaten on price, this product is a top choice for safety and durability.
The Sflue Black Locking Band SCREW TOGGLE Ø 127 is used to securely connect and reinforce joints in chimney flue systems, ensuring the safety and efficiency of solid fuel and gas/oil appliances.
National Flues is a trusted supplier of high-quality fireplaces and flues, catering to both retail and trade customers across the UK, with a focus on competitive pricing and reliable delivery.
