TWPro MB - Storm Collar - Ø 175
At a Glance
- - Superior water-tight design crafted for extreme weather conditions
- - Constructed with high-quality 304 grade (outer) and 316 grade (inner) stainless steel
- - High-density compressed rockwool insulation for optimal thermal performance
- - Fully welded construction ensuring a secure, leak-proof fit
- - HETAS Approved and CE marked for safety and quality assurance

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 TWPro MB - Storm Collar Ø 175 is meticulously designed to guarantee water-tightness for your chimney flue system. Ideal for use on solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and boilers. Constructed with durability in mind, the outer skin is made from premium 304 grade stainless steel while the inner skin uses robust 316 grade stainless steel, both 0.4mm thick.
The collar features high-density compressed rockwool insulation ranging from 128kg/m3 to 200kg/m3, ensuring exceptional performance. Fully welded parts ensure a snug fit, keeping you assured of minimal distance to combustibles—50mm for TWPro and 60mm for KC systems. TWPro is proudly HETAS Approved and CE marked, meeting stringent safety and quality standards.
Secure installation is achieved using a Locking Band, and a bead of silicone to complete the water-tight seal, providing long-lasting protection even in extreme weather conditions.
SKU: 58-175-082
Technical Specifications | |
---|---|
Model | TWPro MB - Storm Collar - u00d8 175 |
Diameter | 175mm |
Outer Material | 304 grade stainless steel |
Inner Material | 316 grade stainless steel |
Material Thickness | 0.4mm each |
Insulation Density | 128-200kg/mu00b3 |
Installation Gap | Install 25mm above flashing; maintain 50-60mm clearance from combustibles |
Approvals | HETAS Approved, CE marked |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. 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 TWPro MB Storm Collar Ø 175 is an exceptional addition to your flue system, ensuring reliable water-tightness. We deliver nationwide and cater to both retail and trade customers, offering unbeatable prices and dependable service.
The TWPro MB Storm Collar Ø 175 is designed to ensure water-tightness and protect the flue system as it passes through the roof, safeguarding it from extreme weather conditions.
National Flues is a leading UK supplier of high-quality fireplaces and flues, providing top-notch products to both retail and trade customers. Known for unbeatable prices and reliable nationwide delivery, securing a trade account or making secure online payments for retail customers is straightforward and easy.
