TWPro MB - Adjustable Pipe 350-500mm - Ø 100
At a Glance
- - Adjustable length from 350mm to 500mm
- - Diameter of Ø100mm for versatile compatibility
- - Robust construction using 304 and 316L stainless steel
- - High-temperature black coated outer finish for durability
- - Fully insulated with high-density compressed rockwool
- - Includes a Locking Band for screw-free secure installation
- - HETAS Approved and CE marked for safety compliance
- - Suitable for wood, 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: sales@nationalflues.com
- Info
- Specs
- Install
- FAQs
The TWPro MB Adjustable Pipe, adjustable between 350-500mm in length and with a diameter of 100mm, is a top-tier solution for a wide variety of heating appliances. Ideal for use with solid fuel woodstoves, gas coal-effect fires, oil boilers, and gas boilers, this chimney flue pipe features a robust construction. The outer skin comprises 304 stainless steel, 0.4mm thick, coated in a high-temperature black finish for added durability and aesthetics.
The inner skin is crafted from 316-grade stainless steel, also 0.4mm thick. The pipe is fully insulated with compressed rockwool, boasting a density of 200kg/m3, ensuring optimal heat retention and safety. All parts are fully welded, securing durability and long-lasting performance.
Approved by HETAS and CE marked, TWPro meets high safety and compliance standards, with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20. Installation is straightforward with the supplied Locking Band, ensuring the pipe is securely fastened without the need for additional screws. Maintaining a 50mm distance from any combustible materials, such as wood and plasterboard, is essential for safe operation.
SKU: 37-100-015
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. 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 Adjustable Pipe - 350-500mm - Ø 100 is an exceptional choice for anyone needing reliable flue solutions. It combines versatility and high performance, making it perfect for both retail and trade customers. Plus, National Flues ensures nationwide delivery and competitive pricing.
This adjustable chimney flue pipe is designed for use with various heating appliances including solid fuel, gas, and oil-based systems, providing reliable and safe smoke and fume extraction.
TWPro is a trusted name in the flues and chimney industry, known for their high-quality, durable, and compliant products, catering to both trade and retail customers.
