TWPro GREY - Adjustable Pipe 250-350mm - Ø 150
At a Glance
- - Adjustable length from 250mm to 350mm
- - Double-layer stainless steel construction (304 outer, 316 inner)
- - High-density compressed rockwool insulation (200kg/m³)
- - HETAS approved and CE marked for safety
- - Locking Band installation for a secure, screw-free setup
- - Compatible with a range of solid fuel and gas/oil appliances
- - Designed with a body soluble ceramic blanket for enhanced reliability

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 Adjustable Pipe 250-350mm Ø 150 is expertly designed for use on solid fuel and gas/oil appliances, such as woodstoves, gas coal effect fires, oil and gas boilers, and any solid fuel appliances. Constructed for durability, its outer skin is crafted from 304 grade stainless steel with a thickness of 0.4mm, while the inner skin is made from 316 grade stainless steel, also 0.4mm thick. The pipe features compressed rockwool insulation at a density of 200kg/m³, ensuring efficient heat management.
All parts are fully welded for maximum strength. The TWPro is HETAS approved and carries a CE mark, with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20. For installation, the TWPro Twin Wall Insulated Chimney parts are securely connected using a Locking Band.
It is essential to maintain a distance of 50mm from the outside of the flue to any combustible materials like wood and plasterboard.
SKU: 17-150-016
Technical Specifications | |
---|---|
SKU | 17-150-016 |
Adjustable Length | 250-350mm |
Diameter | u00d8 150mm |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Inner Material | 316 Stainless Steel (0.40mm thick) |
Insulation | Compressed Rockwool (200kg/mu00b3) |
Certifications | HETAS approved, CE marked |
Installation | Locking Band with 50mm clearance requirement |
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 GREY Adjustable Pipe is a perfect choice for those needing a versatile and high-quality flue component. With nationwide delivery and support for both retail and trade customers, National Flues ensures you get the best in price and reliability.
The TWPro GREY Adjustable Pipe is designed to safely facilitate the release of flue gases from solid fuel and gas/oil appliances, efficiently managing heat and smoke output.
National Flues is a leading supplier of fireplaces and flues across the UK. Known for competitive pricing and reliable delivery, they cater to both retail and trade customers, supporting secure online payments.
