TWPro GREY - Locking Band - Ø 125
At a Glance
- Essential locking solution for secure chimney flue joints
- Constructed with dual stainless steel: 316L inner and 304 outer (0.40mm thick each)
- Compressed rockwool insulation (200kg/m³) for excellent thermal resistance
- Fully welded assembly for reliable performance
- Compliant with HETAS and CE standards
- Suitable for solid fuel, gas, and oil 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 GREY Locking Band Ø 125 is an essential component for securing two parts of your chimney flue system. Ideal for solid fuel, gas, and oil appliances such as woodstoves, gas coal effect fires, and various types of boilers, this locking band ensures optimal safety and durability. Constructed with high-quality 304 grade stainless steel for the outer skin and 316 grade stainless steel for the inner skin, both 0.4mm thick, it offers robust performance.
The insulation is made from compressed rockwool with a density of 200kg/m³, providing excellent thermal resistance. Fully welded parts and a distance requirement of 50mm from combustibles make this product both safe and efficient. Approved by HETAS and CE marked, it complies with standards EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.
When installing, ensure each joint is secured with one of these locking bands, maintaining a safe distance from combustible materials.
SKU: 17-125-050
Technical Specifications | |
---|---|
SKU | 17-125-050 |
Item | Locking Band - Ø 125 |
Designation | EN1856-1 T600 N1 W V2 L50040 G50 & EN1856-1 T200 P1 W V2 L50040 020 |
System | TWPro GREY |
Inner Material | 316L Stainless Steel - 0.40mm thick |
Outer Material | 304 Stainless Steel - 0.40mm thick |
Insulation | Compressed rockwool (200kg/m³) |
Distance To Combustibles | 50mm |
Approvals | HETAS / CE |
Fuels | Wood, Oil, Gas, Low sulphur coal |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 2nd. 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 TWPro GREY Locking Band Ø 125 is an exceptional product for securing chimney flue systems. It’s a must-have for both retail and trade customers. With our reliable nationwide delivery and competitive pricing, National Flues ensures you are getting the best value.
The TWPro GREY Locking Band Ø 125 is used to securely join two parts of a chimney flue system, ensuring stability and safety for various types of fuel-burning appliances.
National Flues is a trusted supplier of fireplaces and flues across the UK, known for unbeatable prices, reliable delivery, and excellent service to both retail and trade customers.
