TWPro - Structural Locking Band - 125 Ø
At a Glance
- - Secure connection for unsupported lengths up to 2.9 metres
- - Dual-layer stainless steel construction (304 outer, 316 inner)
- - Complies with HETAS and CE standards
- - Densely packed rockwool insulation (200kg/m³)
- - Replaces standard locking bands for enhanced stability

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 Structural Locking Band with 125mm Ø diameter is engineered for superior stability when dealing with solid fuel and gas/oil appliances, such as woodstoves and gas coal effect fires. It is crucial for installations where an unsupported length of up to 2.9 meters is necessary. Crafted to replace the standard locking band, it ensures secure and reliable connections above and below the final wall support.
Constructed with both an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, each layer boasts 0.4mm thickness. The insulation comprises densely packed rockwool, measuring 200kg/m³, and all parts are expertly welded. Maintaining a 50mm distance from combustibles like wood or plasterboard is essential.
The TWPro system is HETAS Approved and CE marked, with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20, highlighting its compliance with rigorous safety standards.
SKU: 2-125-054
Technical Specifications | |
---|---|
Size | 125mm u00d8 |
Outer Material | 304 Stainless Steel (0.4mm thick) |
Inner Material | 316 Stainless Steel (0.4mm thick) |
Insulation | Densely packed Rockwool, 200kg/mu00b3 |
Approvals | HETAS, CE Marked |
Minimum Clearance | 50mm from combustibles |
Supported Unsupported Length | Up to 2.9 metres |
Designation | EN1856-1 T600 N1 W V2 L50040 G50 & EN1856-1 T200 W V2 L50040 O20 |
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 Structural Locking Band 125mm Ø is a top-quality choice for solid fuel and gas/oil appliances. With our nationwide delivery and competitive pricing, National Flues ensures you get the best product swiftly and affordably. Ideal for both retail and trade customers.
The TWPro Structural Locking Band is used to secure the joints of a chimney flue system, ensuring stability and support for unsupported lengths up to 2.9 meters in solid fuel and gas/oil appliance installations.
National Flues is a renowned supplier of fireplaces and flues across the UK. They are committed to providing the best products at competitive prices with reliable nationwide delivery, catering to both retail and trade customers.
