TWPro MB - Flat Adaptor - Ø 125
At a Glance
- Constructed from durable 0.40mm 304 stainless steel with a high-temperature black coat
- 316L stainless steel inner skin for enhanced longevity
- Superior thermal insulation using compressed rockwool (200kg/m³)
- HETAS Approved and CE marked for safety
- Designed to maintain a 50mm clearance from combustibles
- Easy installation with the included Locking Band

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 Flat Adaptor Ø 125 is a high-quality universal adaptor designed for practical use on a variety of solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, oil boilers, and gas boilers. Crafted with a durable outer skin made from 304 stainless steel, this adaptor boasts a 0.4mm thick construction and is coated in a high-temperature black finish for added durability and aesthetic appeal.The inner skin is constructed from 316-grade stainless steel, also at 0.4mm thickness, ensuring robustness and longevity. The insulation is composed of compressed rockwool with a density of 200kg/m3, offering superior thermal insulation properties.
All parts are fully welded for seamless integration and maximum safety.Crucially, the TWPro MB Flat Adaptor maintains a safe distance of 50mm from combustible materials, adhering to safety standards. The product is HETAS Approved and CE marked, reassuring you of its compliance with rigorous industry standards. The TWPro designation numbers are EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, reflecting its reliable construction and performance.Installation is straightforward with the included Locking Band, ensuring a secure connection.
Remember to maintain a 50mm distance from any combustible materials during installation.
SKU: 37-125-005
Technical Specifications | |
---|---|
Adaptor Diameter | 125mm |
Outer Material | 304 Stainless Steel, 0.40mm thick, high-temperature black coated |
Inner Material | 316L Stainless Steel, 0.40mm thick |
Insulation | Compressed Rockwool, 200kg/mu00b3 |
Approvals | HETAS / CE |
Safety Clearance | 50mm from combustible materials |
TWPro Designations | EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20 |
Application | Woodstoves, gas coal effect fires, oil boilers, gas boilers, and solid fuel appliances |
Installation Accessory | Includes Locking Band for secure connection |
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
At National Flues, we are proud to supply the TWPro MB Flat Adaptor Ø 125. Rarely beaten on price and known for reliable delivery, this versatile adaptor serves both retail and trade customers nationwide.
The TWPro MB Flat Adaptor Ø 125 is used to connect appliance outlets to the TWPro chimney system. It ensures a safe and efficient transition between components.
National Flues is a leading supplier of fireplaces and flues in the UK, dedicated to quality products and reliable service for both retail and trade customers.
