TWPro MB - Structural Locking Band - Ø 125
At a Glance
- - Designed for unsupported chimney flue lengths up to 2.9 metres
- - Constructed with dual stainless steel skins (304 and 316L) for enhanced durability
- - High-temperature black coated outer material for both performance and aesthetics
- - Compliant with HETAS and CE standards ensuring top-tier safety and quality
- - Provides secure, robust locking for a variety of solid fuel, 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 TWPro MB Structural Locking Band Ø 125 is specifically designed for securing unsupported lengths of chimney flue up to 2.9 metres. Ideal for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, oil boilers, and gas boilers, this locking band ensures both stability and safety. Constructed from high-grade materials, the outer skin is 0.4mm thick 304 stainless steel with a durable high-temperature black finish, while the inner skin is 316-grade stainless steel.
The compressed rockwool insulation offers a density of 200kg/m³, ensuring excellent thermal performance. With full CE marking and HETAS approval, the TWPro MB meets all necessary safety standards. Installation is straightforward, with each part of the twin wall insulated chimney being secured by the locking band.
Remember to maintain a 50mm distance from any combustible materials.
SKU: 37-125-054
Technical Specifications | |
---|---|
SKU | 37-125-054 |
Product | TWPro MB Structural Locking Band u00d8 125 |
Inner Material | 316L Stainless Steel - 0.40mm thick |
Outer Material | 304 Stainless Steel - 0.40mm thick (High Temperature Black Coated) |
Insulation | Compressed Rockwool, Density 200kg/mu00b3 |
Approvals | HETAS / CE |
Fuel Compatibility | Wood, Oil, Gas, Low Sulphur Coal |
Maximum Unsupported Length | 2.9 metres |
Installation Clearance | 50mm from combustibles |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. 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.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The TWPro MB Structural Locking Band Ø 125 is a robust and reliable solution for any chimney flue system. We at National Flues highly recommend it for both trade and retail customers across the nation. Order now and experience our dependable service and competitive pricing.
The TWPro MB Structural Locking Band Ø 125 is designed to provide secure locking and support for chimney flue systems, ensuring stability and safety for unsupported lengths up to 2.9 metres.
National Flues is your trusted supplier of high-quality fireplaces and flues, delivering across the UK with a commitment to competitive pricing and reliable service. Our products are available to both retail and trade customers.
