Sflue (70123407MI) - Storm Collar - 127mm Ø
At a Glance
- - Durable dual-layer stainless steel construction (304 outer, 316 inner at 0.4mm thickness)
- - Designed for solid fuel, wood stoves, gas coal effect fires, and oil/gas boilers
- - HETAS Approved and CE marked (EN1856-1 T450 N1 D V2 L50040 G50)
- - Includes a tube of silicon sealant for enhanced weatherproofing
- - Features an 8-barbed twist-lock mechanism for secure and quick 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 (70123407MI) Storm Collar - 127mm Ø is specifically designed for use on solid fuel and gas/oil appliances including wood stoves, gas coal effect fires, and oil/gas boilers. Constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both with a thickness of 0.4mm, this storm collar ensures durability and longevity. The insulation is made from compressed rock wool with a density of 230kg/m3, encapsulated within twist-lock couplers for added efficiency.
All parts are fully laser welded for superior quality. To maintain safety, ensure a distance of 50mm from any combustible materials. The Sflue system also boasts HETAS approval and carries the CE mark under Designation Number EN1856-1 T450 N1 D V2 L50040 G50.
Installation is straightforward, using an 8-barbed twist-lock system and securing the parts with a locking band.
SKU: 22-125-082
Technical Specifications | |
---|---|
SKU | 22-125-082 |
Item | Storm Collar - 127mm u00d8 |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Inner Material | 316 Stainless Steel (0.40mm thick) |
Insulation | Compressed Rock Wool (230kg/m3) |
Certifications | HETAS Approved / CE Marked (EN1856-1 T450 N1 D V2 L50040 G50) |
Installation Mechanism | 8-barbed twist-lock with locking band |
Minimum 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 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 (70123407MI) Storm Collar - 127mm Ø is an exemplary choice for anyone needing reliable weatherproofing for their chimney system. At National Flues, we take pride in offering this high-quality, HETAS Approved product with secure online payments and nationwide delivery for both retail and trade customers.
The Sflue (70123407MI) Storm Collar is designed to weatherproof the top of the flashing on chimney flue systems, providing a secure seal against external elements.
National Flues is a trusted supplier of high-quality fireplaces and flues, serving retail and trade customers across the UK. Known for competitive pricing and reliable delivery, we offer secure online payments and tailored trade accounts.
