TWPro MB - Pipe 500mm - Ø 125
At a Glance
- - 500mm chimney flue pipe with a 125mm diameter
- - Constructed with 316L stainless steel inner skin and 304 stainless steel outer skin, high temperature black coated
- - Fully welded construction with compressed rockwool insulation (200kg/m³) for superior thermal efficiency
- - Certified to HETAS & CE standards, ensuring safety and compliance
- - Compatible with solid fuel, gas, and oil appliances including wood stoves, coal effect fires, and boilers

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 - Pipe 500mm Ø 125mm is engineered for high performance on solid fuel, gas, and oil appliances such as wood stoves, gas coal effect fires, and boilers. This state-of-the-art chimney flue pipe features an outer skin crafted from 304-grade stainless steel, coated in a high-temperature black finish for added protection and aesthetics. The inner skin, constructed from 316-grade stainless steel, ensures enhanced durability.
Boasting fully welded parts and compressed rockwool insulation with a density of 200kg/m³, this pipe guarantees robust and reliable performance. Certified by HETAS and CE marked, the TWPro MB conforms to EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20 standards, ensuring compliance and safety. Installation is straightforward, secured with a supplied Locking Band, requiring a 50mm clearance from combustibles.
Ideal for any solid fuel appliance setup.
SKU: 37-125-011
Technical Specifications | |
---|---|
Pipe Length | 500mm |
Diameter | 125mm |
Effective Installed Length | 465mm |
Inner Material | 316L Stainless Steel (0.40mm thick) |
Outer Material | 304 Stainless Steel (0.40mm thick, High Temperature Black Coated) |
Insulation | Compressed Rockwool, 200kg/mu00b3 |
Certifications | HETAS, CE |
Standards | EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20 |
Fuel Compatibility | Wood, Oil, Gas, Low Sulpher Coal |
Minimum Clearance | 50mm to 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 - 500mm Pipe with a 125mm diameter is a top-tier choice for both retail and trade customers, designed for durability and efficiency. Coupled with our reliable nationwide delivery and rarely beaten prices, it's an exceptional investment.
The TWPro MB - Pipe 500mm Ø 125mm is designed to facilitate the safe and efficient venting of exhaust gases from solid fuel, gas, and oil appliances.
National Flues specialises in high-quality fireplaces and flues, serving both retail and trade customers across the UK with dependable delivery and competitive pricing.
