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125MM (5 INCH) Flue Liners & Install Kits - MI-Flex, 904L Mi-FLEX

Discover top-tier 125mm (5 inch) flue products including MI-Flex and 904L Mi-FLEX solutions for your fireplace. Ensure a secure and efficient installation with our superior flue liners, fixings, terminals, insulation, and more.

 

MI-FlexMI-Flex
Chimney FlueChimney Flue
Connecting PipesConnecting Pipes
Fans Flashings CowlsFans Flashings Cowls
Installation PartsInstallation Parts
After Care PartsAfter Care Parts
StovesStoves
FireplacesFireplaces
Flue Liner
Flue Liner
Reg Plates
Reg Plates
Install Kits
Install Kits
1mm Fixings
1mm Fixings
Bottom Fixings
Bottom Fixings
Terminals
Terminals
Top Fixings
Top Fixings
Accessories
Accessories
Gathers
Gathers
Insulation
Insulation
Jubilee Clip and Banding Ø 200 - 800mm length
SKU: 13-JUBILEE-200

Jubilee Clip and Banding Ø 200 - 800mm length

£3.99 incl VAT

Jubilee Clip and Banding Ø 300 - 1000mm length
SKU: 13-JUBILEE-300

Jubilee Clip and Banding Ø 300 - 1000mm length

£4.49 incl VAT

Increasing MI-FLEX Adaptor - Ø 100-Ø 125
SKU: 20-100-MR

Increasing MI-FLEX Adaptor - Ø 100-Ø 125

£20.49 incl VAT

Top Clamp - Ø 125
SKU: 20-125-C

Top Clamp - Ø 125

£9.99 incl VAT

Gather Hood (300x300) - Ø 125
SKU: 20-125-GHM

Gather Hood (300x300) - Ø 125

£122.99 incl VAT

Gather Hood Small (300x200) - Ø 125
SKU: 20-125-GHS

Gather Hood Small (300x200) - Ø 125

£113.99 incl VAT

Joiner - Ø 125
SKU: 20-125-J

Joiner - Ø 125

£21.49 incl VAT

MI-FLEX Adaptor - Ø 125
SKU: 20-125-MAE

MI-FLEX Adaptor - Ø 125

£18.99 incl VAT

MI-FLEX Adaptor 1mm - Ø 125
SKU: 20-125-MAE1

MI-FLEX Adaptor 1mm - Ø 125

£29.99 incl VAT

Long Tail MI-FLEX Adaptor - Ø 125
SKU: 20-125-MAELT

Long Tail MI-FLEX Adaptor - Ø 125

£24.49 incl VAT

Mini Pot Hanging Cowl 1mm (Natural) - Ø 125
SKU: 20-125-MINIPH1

Mini Pot Hanging Cowl 1mm (Natural) - Ø 125

£119.99 incl VAT

Mini Pot Hanging Cowl 1mm (Painted) - Ø 125
SKU: 20-125-MINIPHT1

Mini Pot Hanging Cowl 1mm (Painted) - Ø 125

£127.49 incl VAT

Increasing MI-FLEX Adaptor - Ø 125-Ø 150
SKU: 20-125-MR

Increasing MI-FLEX Adaptor - Ø 125-Ø 150

£21.99 incl VAT

Increasing MI-FLEX Adaptor 1mm  - Ø 125-Ø 150
SKU: 20-125-MR1

Increasing MI-FLEX Adaptor 1mm - Ø 125-Ø 150

£42.49 incl VAT

Increasing MI-FLEX Adaptor - Ø 125-Ø 175
SKU: 20-125-MRD

Increasing MI-FLEX Adaptor - Ø 125-Ø 175

£66.49 incl VAT

Long Tail Increasing MI-FLEX Adaptor - Ø 125-Ø 150
SKU: 20-125-MRLT

Long Tail Increasing MI-FLEX Adaptor - Ø 125-Ø 150

£37.99 incl VAT

Nose Cone - Ø 125
SKU: 20-125-NC

Nose Cone - Ø 125

£5.49 incl VAT

Top Plate - Ø 125
SKU: 20-125-P

Top Plate - Ø 125

£10.99 incl VAT

Pack 501 - (125mm, P/C/PS/N/CNP/MAE)
SKU: 20-125-P501

Pack 501 - (125mm, P/C/PS/N/CNP/MAE)

£41.99 incl VAT

Pack 502 - (125mm, P/C/N/CNP/MAE/RC)
SKU: 20-125-P502

Pack 502 - (125mm, P/C/N/CNP/MAE/RC)

£60.99 incl VAT

Your Questions Answered

What is the difference between MI-Flex and 904L Mi-FLEX? -

MI-Flex is known for its flexibility and ease of installation, while 904L Mi-FLEX offers enhanced corrosion resistance and durability for long-term use in fireplace flues.

Do I need any special tools to install 125mm (5 inch) flue liners? +

Can I use 125mm flue liners for a wood-burning stove? +

How often should I clean my 125mm flue liner? +

Are there any safety precautions I should take when installing 125mm flue liners? +

In the realm of fireplace flues, the 125mm (5 inch) category stands out with its versatile options. MI-Flex and 904L Mi-FLEX products offer durability and reliability in flue liner installations. Whether you need a coil or cut length, our 125mm solutions provide top-notch quality and performance. Pair these with our installation kits, fixings, and insulation for a complete fireplace flue setup. With our range of products, you can trust in a seamless installation that enhances both safety and efficiency for your fireplace.
Why Buy These Products
The 125mm (5 inch) flue products cater to a range of fireplace setups, from standard residential fireplaces to more customized designs. Whether you're a homeowner or a professional installer, these flue liners and accessories offer the flexibility and quality needed for various installation requirements. Use them to ensure proper venting, maintain optimal airflow, and increase the overall efficiency of your fireplace. Trust in the durability of MI-Flex and 904L Mi-FLEX products to deliver long-lasting performance in your fireplace flue system.

Trusted By Trade Professionals

Our 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. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.