IL - Storm Collar (supplied with Sealant) - Ø 125
At a Glance
- Weatherproof design for reliable sealing
- Pre-applied sealant simplifies installation
- Durable aluminium liner with a zalutite outer casing
- Ideal for naturally aspirated, non-condensing gas vent systems
- Trusted performance in the UK for over 25 years

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 IL Storm Collar (supplied with Sealant) Ø 125 is part of a robust twin wall insulated pre-fabricated domestic gas vent system. For over 25 years, this range has been a staple in the UK, known for its exceptional quality and reliability. The IL gas vent is specifically engineered for naturally aspirated domestic gas-fired appliances featuring a draught hood or diverter.
It is designed to work under negative pressure and dry conditions, handling flue gas temperatures up to 250°C. Available in three diameter sizes—100mm, 125mm, and 150mm—the system comprises an aluminium liner coupled with a zalutite outer case, separated by a 6mm air gap. This storm collar is suitable for both internal and external applications, although it is not appropriate for condensing and positive pressure applications.
SKU: 24-125-83
Technical Specifications | |
---|---|
SKU | 24-125-83 |
Diameter | 125mm (u00d8 125) |
System | IL Gas Vent |
Inner Material | Aluminium |
Outer Material | Zalutite (zinc & aluminium coated steel) |
Flue Gas Temperature | Up to 250u00b0C |
Distance To Combustibles | 50mm (2 Inches) |
Joint Method | Push fit and twist lock |
Approvals | CE, BS EN 9001:2008 |
Warranty | 5 year conditional 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
At National Flues, we are proud to offer the IL Storm Collar (supplied with Sealant) Ø 125, an essential component for your chimney flue system. With over 25 years of proven quality and reliability, this product is ideal for both retail and trade customers. Rarely beaten on price and with nationwide delivery, you can trust us to provide you with the best service and products.
The IL Storm Collar is designed to provide a secure seal around the flue pipe where it exits the roof, protecting your home from water ingress.
IL products are renowned for their quality and reliability in the chimney flue industry, having a strong presence in the UK market for over 25 years.
