TWPro MB - Anti-wind Cowl - Ø 125
At a Glance
- Durable dual-layer stainless steel construction (304 outer, 316 inner)
- 0.4mm thick for high performance under extreme conditions
- Insulated with compressed rockwool at 200kg/m3 density for superior heat retention
- High-temperature black coated external finish for enhanced aesthetics and longevity
- HETAS approved and CE marked, ensuring compliance with safety standards
- Designed with a safe 50mm clearance from combustibles

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
The TWPro MB Anti-Wind Cowl with a diameter of 125mm is the perfect solution for enhancing the performance of your solid fuel and gas appliances. Designed to provide ultimate protection against wind and rain, this cowl is specifically crafted for woodstoves, gas coal effect fires, oil boilers, and any solid fuel appliances. Its robust construction features an outer skin of 304 stainless steel with a 0.4mm thickness, coated in a high-temperature black finish for added durability and aesthetics.
The inner skin is made from premium 316-grade stainless steel and also has a 0.4mm thickness. This double-layer construction is insulated with compressed rockwool, ensuring a density of 200kg/m3 for superior heat retention. Professionally welded parts guarantee long-lasting performance.
With a safe distance of 50mm to combustibles, this cowl meets rigorous safety standards. Approved by HETAS and CE marked, it boasts impressive designations including EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20. Installation is straightforward; secure the twin wall insulated chimney parts using the provided locking band, ensuring a 50mm clearance from any combustible materials.
SKU: 37-125-091
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.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
At National Flues, we recommend the TWPro MB Anti-Wind Cowl for its exceptional wind and rain protection. Proudly delivering nationwide, we serve both retail and trade customers with prompt and reliable service.
The TWPro MB Anti-Wind Cowl is designed to enhance the safety and efficiency of your solid fuel and gas appliances by providing superior protection against wind and rain.
National Flues is a reputable supplier of fireplaces and flues, known for unbeatable prices and reliable delivery services across the UK. Catering to both retail and trade customers, they offer secure online payments and trade accounts.
