TWPro MB - Damper Section - Ø 125
At a Glance
- Premium 304 & 316L stainless steel construction for durability
- Effectively regulates chimney draught for optimal appliance performance
- Suitable for wood, oil, gas, and low-sulphur coal appliances
- High-temperature black coated outer skin for heat resistance
- Compressed rockwool insulation (200kg/m³) for excellent thermal efficiency
- Fully welded design ensuring a secure installation
- Certified by HETAS and CE, meeting strict safety standards
- Maintains a safe 50mm clearance from combustible materials

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 Damper Section (Ø 125mm) is an essential component for regulating the draught within your chimney system, ensuring optimal performance for your solid fuel, gas, or oil appliances. Constructed with an outer skin of 304 stainless steel, coated in a high-temperature black finish, and an inner skin of 316 grade stainless steel, this damper section offers outstanding durability and heat resistance. The insulation is made from compressed rockwool with a density of 200kg/m³, providing excellent thermal efficiency.
Fully welded parts ensure secure installation, and the TWPro Damper Section maintains a safe 50mm distance from combustible materials. Approved by HETAS and CE marked, it meets all relevant standards and carries the designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.
SKU: 37-125-006
Technical Specifications | |
---|---|
Outer Material | 304 Stainless Steel - High Temperature Black Coated (0.40mm thick) |
Inner Material | 316L Stainless Steel - 0.40mm thick |
Insulation | Compressed Rockwool, 200kg/mu00b3 |
Certifications | HETAS Approved, CE Marked |
Designation | EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20 |
Clearance | 50mm from any combustible material |
Diameter | 125mm |
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 Damper Section is a must-have for any efficient chimney flue system. Perfect for solid fuel, gas, and oil appliances, this high-quality product is built to last. With nationwide delivery available and options for both retail and trade customers, National Flues has you covered. Always reliable and rarely beaten on price.
The TWPro MB Damper Section is used to regulate draught within chimney flue systems, ensuring efficient operation for solid fuel, gas, and oil appliances.
TWPro is renowned for high-quality chimney and flue solutions, offering products that meet strict safety and performance standards. TWPro maintains a strong reputation in both the retail and trade sectors.
