MI-FLEX Adaptor - Ø 300 (20-300-MAE)
-
Fast deliveryMonday, November 17th*
-
Best PriceCall us to beat any price you found online.
-
Secure checkoutCard· Google/Apple Pay· Klarna· Paypal
At a Glance
- Constructed from high-quality 316L stainless steel (0.6mm thick)
- Seamlessly connects ridged single wall flue systems to MI-FLEX flue liners
- Provides a gas-tight seal when installed correctly
- Withstands temperatures up to 600°C (T600 designation)
- Suitable for wood (with <20% moisture), oil, gas, and smokeless coal
- Compliant with BSEN 1856-2 standards and Building Regulations Document J
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: sales@nationalflues.com
- Details
- Specs
- Install/Packs
- FAQs
The MI-FLEX Adaptor - Ø 300 is a high-quality, 0.6mm 316 stainless steel fitting designed to seamlessly connect a ridged single wall flue system to a MI-FLEX flexible flue liner of the same diameter. Essential for creating a complete and efficient chimney system, this adaptor ensures a gas-tight seal when correctly installed inside an existing masonry chimney. It's suitable for use on a variety of fuel sources including wood (with less than 20% moisture), smokeless coal, gas, and oil, and can withstand temperatures up to 600°C (T600 designation).
To comply with Building Regulations Document J, it’s vital that the flexible flue liner is fully enclosed within a masonry chimney, never boxed in with timber or plasterboard. This adaptor, part of the MF20 MI-FLEX accessories range, makes it easy to transition between your flue system and liner, enhancing both safety and efficiency.
SKU: 20-300-MAE
Delivery Information* +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.
About National Flues Ltd +
We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.
This is us — real advice over the phone, or at the counter, and real stock in our warehouse.
| Technical Specifications | |
|---|---|
| SKU | 20-300-MAE |
| Material | 316L Stainless Steel, 0.6mm |
| Size | Ø 300 mm |
| Temperature Rating | Up to 600°C (T600 designation) |
| Approvals | HETAS / CE |
| Fuels | Wood (<20% moisture), Smokeless Coal, Gas, Oil |
| Designation | BSEN 1856-2 T600 N1 W V2 L50012 G |
| System | MI-FLEX Accessories MF20 |