Sflue (2119105) - Tee Cap - 127mm Ø
At a Glance
- - Robust 316L/304 Stainless Steel Construction
- - 0.40mm thickness for enhanced durability
- - Suitable for solid fuel and gas/oil appliances
- - HETAS approved and CE marked for safety compliance
- - Precision engineered twist-lock couplers for secure installation

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 Tee Cap 127mm Ø is an essential component designed to close off the branch or serve as an access, inspection, and cleaning point for your chimney system. Suitable for use with solid fuel and gas/oil appliances, such as wood stoves, gas fires, and boilers, this tee cap ensures optimal performance and safety. Constructed with an outer skin of 0.4mm thick 304-grade stainless steel and an inner skin of 0.4mm thick 316-grade stainless steel, it offers maximum durability and resistance to high temperatures.
The insulation is made from compressed rockwool with a density of 230kg/m3, encapsulated within the twist-lock couplers for secure installation. All parts are fully laser welded, ensuring a robust and long-lasting build. Adhering to safety standards, Sflue requires a distance of 50mm from combustibles.
Additionally, this product is HETAS approved and CE marked with the designation number EN1856-1 T450 N1 D V2 L50040 G50.
SKU: 22-125-036
Technical Specifications | |
---|---|
SKU | 22-125-036 |
Diameter | 127mm u00d8 |
Inner Material | 316L Stainless Steel (0.40mm thick) |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Insulation | Compressed Rockwool (230kg/m3) |
Approvals | HETAS / CE, EN1856-1 T450 N1 D V2 L50040 G50 |
Distance To Combustibles | 50mm |
Warranty | 15 Years |
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.
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National Flues Ltd Verdict
The Sflue Tee Cap 127mm Ø is a reliable and high-quality choice for your chimney system, approved by HETAS and CE marked. National Flues is proud to offer prompt nationwide delivery and support for both retail and trade customers.
The Sflue Tee Cap 127mm Ø is designed to close off the branch or base of a tee in your chimney system and to provide an access/inspection/cleaning point.
National Flues is a leading supplier of fireplaces and flues, committed to offering exceptional products at competitive prices and reliable delivery to both retail and trade customers nationwide.
