Sflue Black (2141305B) - 135° Tee - Ø 127
At a Glance
- Constructed with premium 304 and 316 stainless steel for robust durability
- Suitable for use with solid fuel, gas, oil, and low sulphur coal appliances
- HETAS Approved and CE marked ensuring top industry safety standards
- Features an 8 barbed twist lock system with a secure locking band for ease of installation
- Maintains a safe 50mm clearance from combustibles for enhanced safety during operation

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 Sflue Black 135° Tee Ø127 is an essential component for creating a smooth transition in your chimney system. Designed for use with solid fuel and gas/oil appliances, this 135° tee can seamlessly integrate with woodstoves, gas coal effect fires, and boilers of all types. Constructed with precision, the outer skin is made from 304-grade stainless steel, while the inner skin is crafted from 316-grade stainless steel, both maintaining a thickness of 0.4mm for ultimate durability.
The insulation, compressed rockwool with a density of 230kg/m3, is fully encased within the twist-lock couplers to ensure maximum safety and efficiency. The assembly process is simplified with the 8 barbed twist lock system and secured using a locking band, ensuring reliability and ease of installation.Sflue products are fully laser welded and meet stringent safety standards, being HETAS Approved and CE marked. With a designation number of EN1856-1 T450 N1 D V2 L50040 G50, you can trust the superior quality and safety of this product.
Additionally, the flue maintains a safe distance of 50mm from combustibles, providing further security. Whether you are a trade professional or a DIY enthusiast, this tee ensures a high-quality installation every time.
SKU: 42-125-034
Technical Specifications | |
---|---|
SKU | 42-125-034 |
Product Name | Sflue Black 135° Tee - Ø 127 |
Diameter | 127mm |
Angle | 135° |
Inner Material | 316L Stainless Steel (0.40mm thick) |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Insulation | Compressed Rockwool (230kg/m3) |
Certification | HETAS / CE |
Distance To Combustibles | 50mm |
Designation | EN1856-1 T450 N1 D V2 L50040 G(50) |
Warranty | 15 Years manufacturing defect warranty; 2 Years paint warranty |
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 Sflue Black 135° Tee Ø127 is a robust, high-performance chimney flue component. Ideal for a variety of appliances, this part ensures optimal functionality. We proudly deliver nationwide, catering to both retail and trade customers with reliable and cost-effective solutions.
The Sflue Black 135° Tee Ø127 is used for creating supportive, smooth transitions within chimney systems, specifically at the base of vertical chimneys or changes in plane from horizontal to vertical, ensuring optimal performance and safety.
National Flues is a trusted UK supplier of high-quality fireplaces and flues, serving both retail and trade customers nationwide with unbeatable prices and reliable delivery.
