Sflue (2141105) - Pipe 300mm - 127mm Ø
At a Glance
- - High-quality stainless steel construction (inner 316L & outer 304 grade, both 0.40mm thick)
- - Compressed rockwool insulation (230kg/m³) for efficient heat retention
- - Fully laser welded, ensuring robust and reliable performance
- - CE marked and HETAS approved for safety and compliance
- - Twist-lock couplers with 8 barbed design for secure connections
- - 50mm clearance to combustibles to guarantee installation safety
- - 15-year warranty providing long-term peace of mind

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
Ideal for use with solid fuel and gas/oil appliances, the Sflue Pipe 300mm - 127mm Ø is designed to perform seamlessly with woodstoves, gas coal effect fires, oil and gas boilers, and other solid fuel appliances. Construction features include an outer skin made from 304 grade stainless steel (0.4mm thick), and an inner skin fabricated from 316 grade stainless steel (0.4mm thick). The pipe boasts compressed rockwool insulation with a density of 230kg/m3, encapsulated within twist-lock couplers to provide top-tier heat resistance and efficiency.
Fully laser welded and CE marked, this product meets the EN1856-1 T450 N1 D V2 L50040 G50 standards and has earned HETAS approval. During installation, secure the 8 barbed twist lock twin wall insulated chimney parts with a Locking Band, while maintaining a 50mm distance from any combustible materials to ensure safety.
SKU: 22-125-012
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 10th. 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 Pipe 300mm - 127mm Ø is a top-notch choice for anyone seeking robust and reliable flue systems. Perfect for both retail and trade customers, National Flues ensures you get this high-quality product with prompt nationwide delivery.
The Sflue Pipe 300mm - 127mm Ø is designed for connecting solid fuel and gas/oil appliances to a chimney system, ensuring safe and efficient heat output.
National Flues is a leading supplier of quality fireplaces and flues in the UK. Known for excellent prices, reliable delivery, and a wide range of products suitable for both retail and trade customers.
