TWPro MB - 135° Tee - Ø 80
At a Glance
- - Robust 304 stainless steel outer skin and 316L stainless steel inner skin (both 0.4mm thick)
- - High-temperature black coated finish for enhanced durability
- - Compressed rockwool insulation (200kg/m3) for improved thermal efficiency
- - Fully welded construction ensuring maximum strength
- - HETAS approved and CE marked for safety compliance
- - Suitable for solid fuel, wood stoves, gas/oil boilers and gas coal effect fires
- - Maintains a safe 50mm clearance from combustible materials
- - Easy installation with a supplied 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: sales@nationalflues.com
- Info
- Specs
- Install
- FAQs
The TWPro MB - 135° Tee in Ø 80 is designed for use with solid fuel and gas/oil appliances, such as wood stoves, gas coal effect fires, oil boilers, and gas boilers. Constructed with a 304 stainless steel outer skin and 316-grade stainless steel inner skin, both with a thickness of 0.4mm, this tee is exceptionally durable. It is coated with a high-temperature black finish and features compressed rockwool insulation with a density of 200kg/m3.
Fully welded for maximum strength, it ensures a 50mm safe distance from any combustible materials. TWPro components are HETAS approved and CE marked, guaranteeing quality and safety in your chimney flue system. The installation process is straightforward, requiring the inclusion of a locking band for secure fitting.
This product carries EN1856-1 certifications, making it suitable for a wide range of heating systems.
SKU: 37-80-034
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 135° Tee - Ø 80 is a top-notch product in our collection. Its robust construction and ease of installation make it a favourite among our customers. We offer nationwide delivery and serve both retail and trade customers, ensuring you get the best quality at unbeatable prices.
The 135° Tee allows for easy cleaning at the base of the chimney, ensuring the efficient flow of flue gases.
National Flues is a leading supplier of fireplaces and flues across the UK, known for reliable delivery, competitive prices, and excellent customer service. We serve both retail and trade customers with high-quality products and secure online payment options.
