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MI-Flex 904L Install Kits for Efficient Fireplace Flue Installation | National Flues

Upgrade your fireplace flue installation with our MI-Flex 904L Install Kits. Designed for 150mm (6 inch) flues, these kits offer top-notch quality and ease of installation. Whether you need Pack 604, Pack 606, Pack 601, Pack 608, Pack 605, Pack 602, Pack 603, or Pack 607, National Flues has you covered with all the components you need.

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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.

£43.49

20-150-P601

Pack 601 - (150mm, P/C/PS/N/CNP/MAE)

Pack 601 - (150mm, P/C/PS/N/CNP/MAE)

£62.99

20-150-P602

Pack 602 - (150mm, P/C/N/CNP/MAE/RC)

Pack 602 - (150mm, P/C/N/CNP/MAE/RC)

£74.99

20-150-P603

Pack 603 - (150mm, PHCM/N/CNP/MAE)

Pack 603 - (150mm, PHCM/N/CNP/MAE)

£80.99

20-150-P606

Pack 606 - (150mm, PHCM/N/CNP/20-125-MR)

Pack 606 - (150mm, PHCM/N/CNP/20-125-MR)

£82.99

20-150-P607

Pack 607 - (150mm, PHCMT/N/CNP/MAE)

Pack 607 - (150mm, PHCMT/N/CNP/MAE)

£90.49

20-150-P608

Pack 608 - (150mm, PHCMT/N/CNP/20-125-MR)

Pack 608 - (150mm, PHCMT/N/CNP/20-125-MR)

Your Install Kits Questions Answered

Are the MI-Flex 904L Install Kits suitable for all types of fireplaces? -

Yes, our install kits are designed to be compatible with a variety of fireplace types, ensuring flexibility in installation.

Do I need special tools to use the MI-Flex 904L Install Kits? +

Can I install these kits myself, or do I need professional help? +

Are the components in the kits durable and able to withstand high temperatures? +

Do the kits come with installation instructions? +

Can I customize the components in the kits to fit my specific fireplace requirements? +

What sets National Flues' MI-Flex 904L Install Kits apart from other options on the market? +

When it comes to fireplace flue installations, using high-quality components is crucial for safety and efficiency. Our MI-Flex 904L Install Kits provide a reliable solution for your 150mm (6 inch) flue needs. Each pack is carefully assembled to ensure a smooth installation process, saving you time and effort. With National Flues, you can trust that your fireplace flue will perform optimally for years to come.
Why Buy Install Kits Products
Our MI-Flex 904L Install Kits are ideal for both residential and commercial fireplace installations. Whether you are upgrading an existing fireplace or installing a new one, these kits offer the perfect combination of durability and performance. The 150mm (6 inch) components are versatile and easy to work with, making them suitable for a wide range of fireplace setups. Trust National Flues for all your fireplace flue needs!

Trusted By Trade Professionals

Our Install Kits 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 Install Kits 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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