Twin Wall to Flex Adaptor Ø 175
At a Glance
- HETAS Approved & CE marked Crafted from premium 304 and 316L stainless steel Durable 0.40mm wall thickness for enhanced longevity Superior thermal insulation with compressed rockwool (200kg/m3) Secure screw fix coupling ensures robust transition Designed for solid fuel, oil, gas and low sulphur coal appliances

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 Twin Wall to Flex Adaptor Ø 175 is a high-quality transitional adaptor designed for use with solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and boilers. Both the outer and inner skins are crafted from top-grade stainless steel (304 and 316 respectively), with an impressive thickness of 0.4mm to ensure longevity and resistance to high temperatures. The insulation comprises compressed rockwool, boasting a density of 200kg/m3, providing exceptional thermal insulation and safety.
Each component is fully welded, maintaining structural integrity and enhancing durability. This adaptor complies with EN1856-1 standards and is approved by HETAS, ensuring it meets rigorous safety and performance criteria. To install, simply secure with a Locking Band, keeping a mandatory 50mm distance from any combustible materials like wood or plasterboard.
SKU: 2-175-099
Technical Specifications | |
---|---|
SKU | 2-175-099 |
Adaptor Diameter | 175 mm |
Inner Material | 316L Stainless Steel (0.40mm thick) |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Insulation | Compressed Rockwool (200kg/m3) |
Approvals | HETAS, CE, EN1856-1 |
Suitable For | Wood, Oil, Gas, Low Sulphur Coal Appliances |
Minimum Clearance | 50mm from combustibles |
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
The Twin Wall to Flex Adaptor Ø 175 is a top-tier product that ensures seamless transition for your heating solutions. With HETAS Approval and CE marking, you can trust its quality and durability. National Flues delivers nationwide, offering both retail and trade customers the best products and prices.
The Twin Wall to Flex Adaptor Ø 175 is designed to transition securely from TWPro chimney systems to MI-Flues flexible liners, ensuring a robust and safe connection for various heating appliances.
National Flues is a trusted supplier of high-quality fireplaces and flues across the UK, known for their competitive pricing, reliable delivery service, and comprehensive support for both retail and trade customers.
