Screw-FIX Flex Joiner - Ø 200
At a Glance
- Secure joining of multi-fuel flexible flue liners
- Made from premium 316L stainless steel
- Withstands temperatures up to 600°C
- Complies with Building Regulations Document J
- Perfect for MI-FLEX 316 and MI-FLEX 904 systems

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 Screw-FIX Flex Joiner Ø 200 is a highly practical accessory from the MI-FLEX family, expertly designed to join two pieces of multi-fuel flexible flue liners like MI-FLEX 316 and MI-FLEX 904. This joiner is crucial when the chimney liner length surpasses the maximum available flex length. Perfect for use with applications up to 600°C, including wood (with less than 20% moisture), smokeless coal, gas, and oil, it meets stringent Building Regulations Document J requirements, ensuring it can only be installed enclosed within a masonry chimney.
The system ensures safety and efficiency, providing an excellent solution for a full system chimney. Remember to follow proper maintenance guidelines, which include sweeping by a competent person and avoiding chemical cleaners or mild steel tools for stainless steel chimneys. The flue system should be inspected and cleaned at least once a year, preferably twice for solid fuel appliances to avoid soot build-up and blockages.
SKU: 25-200-J
Technical Specifications | |
---|---|
SKU | 25-200-J |
Product Name | Screw-FIX Flex Joiner - u00d8 200 |
Designation | BSEN 1856-2 T600 N1 W V2 L50012 G |
System | MI-FLEX Accessories MF20 |
Material | 316L Stainless Steel |
Colour Finish | Stainless Steel / NATURAL |
Fuels | Wood (with <20% moisture), Smokeless Coal, Gas, Oil |
Approvals | CE / HETAS |
Max Temperature | 600u00b0C |
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.
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National Flues Ltd Verdict
The Screw-FIX Flex Joiner Ø 200 is essential for any multi-fuel flue system. With unbeatable prices, reliable nationwide delivery, and available for both retail and trade customers, it’s a top choice for anyone needing a secure, compliant flue joiner.
The Screw-FIX Flex Joiner Ø 200 is used to securely join two sections of multi-fuel flexible flue liner, essential for situations where the chimney liner length exceeds the maximum flex available.
National Flues is a leading supplier of high-quality flues and fireplace accessories, offering unbeatable prices and reliable delivery to both retail and trade customers across the UK.
