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High-Quality Bottom Fixings for Flues - MI-Flex 904L 200MM (8 INCH)

When it comes to ensuring your flue system is secure and efficient, bottom fixings play a crucial role. The MI-Flex 904L Mi-FLEX 200MM (8 INCH) Bottom Fixings are designed to provide sturdy support and easy installation for your flue components. Made from high-quality materials, these fixings are built to last, offering durability and reliability you can trust. Whether you are installing a new flue system or replacing existing parts, these bottom fixings are an excellent choice for ensuring optimal performance.
When it comes to ensuring your flue system is secure and efficient, bottom fixings play a crucial role. The MI-Flex 904L Mi-FLEX 200MM (8 INCH) Bottom Fixings are designed to provide sturdy support and easy installation for your flue components. Made from high-quality materials, these fixings are built to last, offering durability and reliability you can trust. Whether you are installing a new flue system or replacing existing parts, these bottom fixings are an excellent choice for ensuring optimal performance.


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The best selling flue liner in the UK. Suitable for gas, oil, and approved solid fuels. Call our advisers on 01670 206 999 if you need any help choosing.

£33.99 £143.99
Showing 11 of 11 items
Increasing MI-FLEX Adaptor - Ø 150-Ø 200

Increasing MI-FLEX Adaptor - Ø 150-Ø 200

20-150-MRD
£73.99 (including VAT)
In stock
Increasing MI-FLEX Adaptor - Ø 180-Ø 200

Increasing MI-FLEX Adaptor - Ø 180-Ø 200

20-180-MR
£34.99 (including VAT)
In stock
Gather Hood Large (300x400) - Ø 200

Gather Hood Large (300x400) - Ø 200

20-200-GHL
£143.99 (including VAT)
In stock
Gather Hood Medium (300x300) - Ø 200

Gather Hood Medium (300x300) - Ø 200

20-200-GHM
£137.99 (including VAT)
In stock
Gather Hood Small (300x200) - Ø 200

Gather Hood Small (300x200) - Ø 200

20-200-GHS
£122.99 (including VAT)
In stock
MI-FLEX Adaptor - Ø 200

MI-FLEX Adaptor - Ø 200

20-200-MAE
£33.99 (including VAT)
In stock
MI-FLEX Adaptor 1mm - Ø 200

MI-FLEX Adaptor 1mm - Ø 200

20-200-MAE1
£50.99 (including VAT)
In stock
Screw-FIX Increaser - Ø 175-200mm

Screw-FIX Increaser - Ø 175-200mm

25-175-MR
£39.99 (including VAT)
In stock
Screw-FIX Adaptor to SW, 1mm - Ø 200

Screw-FIX Adaptor to SW, 1mm - Ø 200

25-200-MAE1
£54.99 (including VAT)
In stock
Screw-FIX Long Tail Adaptor - Ø 200

Screw-FIX Long Tail Adaptor - Ø 200

25-200-MAELT
£42.99 (including VAT)
In stock
Screw-FIX Top Hat Adaptor - Ø 200

Screw-FIX Top Hat Adaptor - Ø 200

25-200-THA
£53.99 (including VAT)
In stock
Your Bottom Fixings Questions Answered

Are MI-Flex bottom fixings suitable for all flue systems? -

MI-Flex bottom fixings are designed to be versatile and compatible with a wide range of flue systems. However, it is always recommended to check the product specifications and compatibility requirements before installation.

How do I know if the bottom fixings are the right size for my flue system? +

Can I install MI-Flex bottom fixings on my own, or do I need professional help? +

Are MI-Flex bottom fixings durable enough to withstand harsh weather conditions? +

Do MI-Flex bottom fixings come with a warranty? +

Can MI-Flex bottom fixings be used for both indoor and outdoor flue installations? +

Do MI-Flex bottom fixings require regular maintenance? +

The MI-Flex 904L Mi-FLEX 200MM (8 INCH) Bottom Fixings are engineered to meet the highest standards of quality and performance. With a focus on durability and strength, these fixings are designed to withstand the demands of flue systems, providing secure support for your components. The 200MM (8 INCH) size is ideal for a range of applications, offering versatility and adaptability to suit your specific needs. Easy to install and maintain, these bottom fixings are the perfect choice for both residential and commercial flue systems.
Why Buy Bottom Fixings Products
The MI-Flex 904L Mi-FLEX 200MM (8 INCH) Bottom Fixings are suitable for a variety of flue system setups. Whether you are constructing a new chimney or upgrading an existing flue, these fixings offer the stability and support needed for a reliable system. Their robust construction makes them perfect for high-temperature environments, ensuring they can withstand the heat generated by your fireplace or stove. Additionally, their corrosion-resistant properties make them ideal for outdoor installations, providing long-lasting performance in all weather conditions.

Trusted By Trade Professionals

Our Bottom Fixings products and services are trusted by hundreds of professionals nationwide. We're committed to providing quality and reliability that meets the high standards of our customers.

Dedicated Support

Experience our unparalleled customer service and support when you buy Bottom Fixings from National Flues. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.

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