Screw-FIX Long Tail Adaptor - Ø 125
At a Glance
- - Crafted from robust 0.6mm 316 stainless steel
- - Designed for a secure, transitional joint between rigid flue systems and MI-FLEX flexible liners
- - Withstands temperatures up to 600°C (T600 designation)
- - Suitable for wood, smokeless coal, gas, and oil fuels
- - Complies with Building Regulations Document J for enclosed masonry chimneys

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 Long Tail Adaptor - Ø 125 is an essential component for any professional chimney installation. Crafted from robust 0.6mm 316 stainless steel, this adaptor ensures a seamless connection between your rigid single wall flue system and MI-FLEX flexible flue liners. This fitting pairs perfectly with MI-FLEX 316 and 904 flexible liners, forming a complete, secure chimney system that complies with Building Regulations Document J.
Capable of withstanding temperatures up to 600°C (T600 designation), this adaptor is suitable for a range of fuels including wood (with less than 20% moisture), smokeless coal, gas, and oil. It is imperative to use it within an enclosed masonry chimney for optimal performance and safety. The bottom fixings precisely connect and secure the flue system, creating a gas-tight seal.
Regular maintenance, including annual sweeping by a competent person and biannual sweeping for solid fuel appliances, is recommended to ensure your chimney's efficiency and safety.
SKU: 25-125-MAELT
Technical Specifications | |
---|---|
Material | 0.6mm 316 Stainless Steel |
Size | u00d8 125 mm |
Temperature Rating | Up to 600u00b0C (T600) |
Fuel Compatibility | Wood (<20% moisture), Smokeless Coal, Gas, Oil |
System | Compatible with MI-FLEX 316 and 904 flexible liners |
Compliance | CE / HETAS, Building Regulations Document J |
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.
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National Flues Ltd Verdict
At National Flues, we proudly recommend the Screw-FIX Long Tail Adaptor - Ø 125 for its reliable, high-quality build designed for lasting performance. Ideal for both trade and retail customers, benefit from our unbeatable prices and nationwide delivery.
The Screw-FIX Long Tail Adaptor - Ø 125 is designed to create a secure, transitional joint connecting a rigid single-wall flue system to a flexible flue liner.
National Flues is a leading UK supplier of fireplaces and flues, catering to both retail and trade customers. Known for competitive pricing, reliable delivery, and secure online payments, National Flues delivers exceptional products and service nationwide.
