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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
Top Hat Adaptor - Ø 125
SKU: 20-125-THA

Top Hat Adaptor - Ø 125

£56.99 incl VAT

Register Plate Adaptor - Ø 150
SKU: 20-125-THAR

Register Plate Adaptor - Ø 150

£85.49 incl VAT

Chimney Notice Plate
SKU: 20-CNP

Chimney Notice Plate

£1.99 incl VAT

Chimney Notice Plate - 50 Pack
SKU: 20-CNP48

Chimney Notice Plate - 50 Pack

£87.49 incl VAT

Screw-FIX Joiner - Ø 125
SKU: 25-125-J

Screw-FIX Joiner - Ø 125

£40.49 incl VAT

Screw-FIX Adaptor to SW - Ø 125
SKU: 25-125-MAE

Screw-FIX Adaptor to SW - Ø 125

£15.49 incl VAT

Screw-FIX Adaptor to SW, 1mm - Ø 125
SKU: 25-125-MAE1

Screw-FIX Adaptor to SW, 1mm - Ø 125

£31.99 incl VAT

Screw-FIX Long Tail Adaptor - Ø 125
SKU: 25-125-MAELT

Screw-FIX Long Tail Adaptor - Ø 125

£27.99 incl VAT

Screw-FIX Increaser - Ø 125-150mm
SKU: 25-125-MR

Screw-FIX Increaser - Ø 125-150mm

£25.49 incl VAT

Screw-FIX Long Tail Increaser - Ø 125-150mm
SKU: 25-125-MRLT

Screw-FIX Long Tail Increaser - Ø 125-150mm

£41.99 incl VAT

Screw-FIX Nose Cone - Ø 125
SKU: 25-125-NC

Screw-FIX Nose Cone - Ø 125

£16.49 incl VAT

MI-FLEX Screw-FIX Pot Hanging Cowl, Natural - Ø 125
SKU: 25-125-PHCM2

MI-FLEX Screw-FIX Pot Hanging Cowl, Natural - Ø 125

£60.49 incl VAT

MI-FLEX Pot Hanging Cowl (Terracotta) - Ø 125
SKU: 25-125-PHCMT2

MI-FLEX Pot Hanging Cowl (Terracotta) - Ø 125

£55.49 incl VAT

Screw-FIX Pot Hanger - Ø 125
SKU: 25-125-PHS

Screw-FIX Pot Hanger - Ø 125

£24.99 incl VAT

Screw-FIX Rain Cap - Ø 125
SKU: 25-125-RC

Screw-FIX Rain Cap - Ø 125

£25.49 incl VAT

Screw-FIX Register Plate Adaptor - Ø 125
SKU: 25-125-RPA

Screw-FIX Register Plate Adaptor - Ø 125

£40.99 incl VAT

Screw-FIX Register Plate Increaser - Ø 125-150mm
SKU: 25-125-RPAI

Screw-FIX Register Plate Increaser - Ø 125-150mm

£55.99 incl VAT

904L Mi-FLEX 125mm x 1m CUT LENGTH
SKU: 36Z-125-1

904L Mi-FLEX 125mm x 1m CUT LENGTH

£36.99 incl VAT

904L Mi-FLEX 125mm x 44m COIL
SKU: 36Z-125-44

904L Mi-FLEX 125mm x 44m COIL

£1,607.99 incl VAT

London Gather 9 x 12 inch - Ø 125
SKU: 61-125-LG12

London Gather 9 x 12 inch - Ø 125

£78.49 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.

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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.

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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.