TWPro MB - 45° Bend - Ø 80
At a Glance
- Durable 304 stainless steel outer skin with high-temperature black finish
- Robust 316L stainless steel inner skin for superior heat resistance
- Efficient compressed rockwool insulation (200kg/m³) for optimal thermal retention
- Fully welded construction for uninterrupted safety and durability
- HETAS Approved and CE marked ensuring regulatory compliance
- Versatile design compatible with wood, oil, gas and coal appliances
- Maintains a safe 50mm clearance to combustibles
- Easy installation with the included Locking Band

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 45° Bend - Ø 80mm is expertly designed for use with a variety of appliances, including woodstoves, gas coal effect fires, oil boilers, gas boilers, and any solid fuel appliances. Constructed with an outer skin of 304 stainless steel, coated in a high-temperature black finish, and an inner skin of 316-grade stainless steel, this flue bend ensures optimal durability and performance. The insulation is made from compressed rockwool with a density of 200kg/m3, efficiently maintaining heat within the system.
Fully welded for robust strength, this product boasts a safe distance to combustibles of 50mm. The TWPro is HETAS Approved and CE marked, with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, ensuring that it meets rigorous safety and quality standards. The installation is straightforward, with chimney parts secured using a Locking Band (supplied).
Always maintain a 50mm distance from the flue to any combustible materials such as wood or plasterboard.
SKU: 37-80-031
Technical Specifications | |
---|---|
Dimensions | u00d8 80mm, 45u00b0 Bend |
Outer Material | 304 Stainless Steel (0.40mm) with High Temperature Black Coating |
Inner Material | 316L Stainless Steel (0.40mm) |
Insulation | Compressed Rockwool (200kg/mu00b3) |
Certifications | HETAS Approved, CE marked (EN1856-1 T600 N1 W V2 L50040 G50 & EN1856-1 T200 P1 W V2 L50040 O20) |
Safe Clearance | 50mm to combustibles |
Compatible Fuels | Wood, Oil, Gas, Coal |
Installation | Locking Band supplied |
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
The TWPro MB 45° Bend - Ø 80mm is an outstanding choice for both retail and trade customers looking to upgrade their chimney systems. Its durability and high performance make it a top pick. Enjoy our reliable nationwide delivery and competitive pricing.
The TWPro MB 45° Bend - Ø 80mm is designed to create offsets in chimney systems for a range of solid fuel, gas, and oil appliances.
National Flues is a leading supplier of high-quality fireplaces and flues, catering to both retail and trade customers across the UK. Known for competitive pricing and reliable delivery, National Flues ensures customer satisfaction and safety with every product.
