TWPro MB - Adjustable Pipe 250-350mm - Ø 150
At a Glance
- Adjustable length (250-350mm) for versatile installation
- Durable 316L and 304 stainless steel construction
- High-temperature black coating for enhanced heat resistance
- Insulated with compressed rockwool (200kg/m³) for thermal efficiency
- HETAS approved and CE marked for safety and compliance
- Supplied with a Free Locking Band for secure assembly

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 Adjustable Pipe (Length: 250-350mm, Diameter: 150mm) is a flexible, high-performance flue component engineered for use with solid fuel as well as gas/oil appliances. Common applications include wood stoves, gas coal effect fires, oil boilers, and gas boilers. This robust pipe features an outer skin constructed from 304-grade stainless steel, coated in a durable, high-temperature black finish, while the inner skin is made from 316-grade stainless steel.
Both skins are 0.4mm thick, ensuring long-lasting durability. For optimal insulation, the pipe is filled with compressed rockwool with a density of 200kg/m³, and all parts are fully welded for maximum efficiency. Importantly, it maintains a safe 50mm distance from combustibles.
Compliance and safety are assured as this product is HETAS approved and CE marked, meeting designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20. Installation is straightforward with a Locking Band (supplied) that secures the chimney parts. Ensure that any gaps between the pipe sections are adequately filled with the provided additional insulation to maintain its efficiency and safety.
SKU: 37-150-016
Technical Specifications | |
---|---|
Length | 250-350mm (adjustable) |
Diameter | 150mm |
Inner Material | 316L Stainless Steel (0.40mm thick) |
Outer Material | 304 Stainless Steel with high-temperature black coating (0.40mm thick) |
Insulation | Compressed Rockwool (200kg/mu00b3) |
Approvals | HETAS / CE (EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20) |
Distance To Combustibles | 50mm |
Installation Accessories | Locking Band and additional insulation provided |
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.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
At National Flues, we stand by the quality of the TWPro MB Adjustable Pipe. It's a versatile and robust solution for your chimney needs, crafted for both solid and gas/oil fuel appliances. Whether you're a trade professional or a retail customer, you can rely on our nationwide delivery to get your flue system up and running with ease.
The TWPro MB Adjustable Pipe is designed to provide a secure and efficient flue system for solid fuel and gas/oil appliances, ensuring safe operation and compliance with safety standards.
TWPro is known for delivering high-quality flue and chimney products, renowned for their durability, efficiency, and compliance with industry standards. Their products are trusted by both trade professionals and retail customers.
