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Top-Quality Terminals for Your Fireplace in the UK | MI-Flex 125MM (5 INCH)

When it comes to ensuring your fireplace's efficiency and safety, MI-Flex 125MM (5 INCH) Terminals are a top choice. These terminals are designed to facilitate proper ventilation and eliminate harmful gases efficiently. By choosing these terminals, you can enhance the performance of your fireplace while prioritizing safety for you and your family.
When it comes to ensuring your fireplace's efficiency and safety, MI-Flex 125MM (5 INCH) Terminals are a top choice. These terminals are designed to facilitate proper ventilation and eliminate harmful gases efficiently. By choosing these terminals, you can enhance the performance of your fireplace while prioritizing safety for you and your family.


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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.

£10.99 £132.99
Showing 20 of 23 items
Mini Pot Hanging Cowl 1mm (Natural) - Ø 125

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

20-125-MINIPH1
£124.99 (including VAT)
In stock
Mini Pot Hanging Cowl 1mm (Painted) - Ø 125

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

20-125-MINIPHT1
£132.99 (including VAT)
In stock
Pot Hanger with AD Cowl - Ø 125

Pot Hanger with AD Cowl - Ø 125

20-125-PHAD
£101.99 (including VAT)
In stock
Pot Hanger with AD Cowl (Terracotta) - Ø 125

Pot Hanger with AD Cowl (Terracotta) - Ø 125

20-125-PHADT
£101.99 (including VAT)
In stock
MI-FLEX Pot Hanging Cowl (Natural) - Ø 125

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

20-125-PHCM
£59.99 (including VAT)
In stock
MI-FLEX Support Pot Hanging Cowl (Natural) - Ø 125

MI-FLEX Support Pot Hanging Cowl (Natural) - Ø 125

20-125-PHCM-S
£73.99 (including VAT)
In stock
MI-FLEX Pot Hanging Cowl (Terracotta) - Ø 125

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

20-125-PHCMT
£59.99 (including VAT)
In stock
MI-FLEX Support Pot Hanging Cowl (Terracotta) - Ø 125

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

20-125-PHCMT-S
£76.99 (including VAT)
In stock
Top Insert Sleeve with Rain Cap - Ø 125

Top Insert Sleeve with Rain Cap - Ø 125

20-125-PSRC
£31.99 (including VAT)
In stock
Rain Cap - Ø 125

Rain Cap - Ø 125

20-125-RC
£25.99 (including VAT)
In stock
MI-FLEX FastFix-Screw Hanging Cowl (Terracotta) - Ø125

MI-FLEX FastFix-Screw Hanging Cowl (Terracotta) - Ø125

21-125-PHCMT
£55.99 (including VAT)
In stock
MI-FLEX Pot Hanging Cowl (Terracotta) - Ø 125

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

25-125-PHCMT2
£57.99 (including VAT)
In stock
Screw-FIX Pot Hanger - Ø 125

Screw-FIX Pot Hanger - Ø 125

25-125-PHS
£25.99 (including VAT)
In stock
Screw-FIX Rain Cap - Ø 125

Screw-FIX Rain Cap - Ø 125

25-125-RC
£26.99 (including VAT)
In stock
Pot Hanging Cowl 1mm (Natural) - Ø 125

Pot Hanging Cowl 1mm (Natural) - Ø 125

20-125-PHCM1
£67.99 (including VAT)
Out of stock
PH Cowl - Ø 125

PH Cowl - Ø 125

20-125-PHCMB
£66.99 (including VAT)
Out of stock
PH Cowl - Buff / Straps / Mesh x 125mm - Ø 125

PH Cowl - Buff / Straps / Mesh x 125mm - Ø 125

20-125-PHCMC
£94.99 (including VAT)
Out of stock
Pot Hanging Cowl 1mm (Painted) - Ø 125

Pot Hanging Cowl 1mm (Painted) - Ø 125

20-125-PHCMT1
£73.99 (including VAT)
Out of stock
MI-FLEX Pot Hanging Cowl (Terracotta) Ø 400 Lid - Ø 125

MI-FLEX Pot Hanging Cowl (Terracotta) Ø 400 Lid - Ø 125

20-125-PHCMT400
£69.99 (including VAT)
Out of stock
MI-FLEX Square Pot Hanging Cowl (Natural) - Ø 125

MI-FLEX Square Pot Hanging Cowl (Natural) - Ø 125

20-125-SPHCM
£71.99 (including VAT)
Out of stock
Your Terminals Questions Answered

How do MI-Flex 125MM (5 INCH) Terminals improve fireplace performance? -

MI-Flex terminals enhance fireplace performance by efficiently venting out smoke and gases, ensuring better air quality and safety.

Are MI-Flex 125MM (5 INCH) Terminals compatible with all types of fireplaces? +

What materials are MI-Flex 125MM (5 INCH) Terminals made of? +

How should MI-Flex 125MM (5 INCH) Terminals be installed? +

Do MI-Flex 125MM (5 INCH) Terminals require regular maintenance? +

Can MI-Flex 125MM (5 INCH) Terminals help reduce heating costs? +

Are MI-Flex 125MM (5 INCH) Terminals environmentally friendly? +

MI-Flex 125MM (5 INCH) Terminals are crafted with high-quality materials to guarantee durability and optimal functionality. These terminals are suitable for a wide range of fireplace types and are known for their reliability in effectively venting out smoke and gases. Whether you have a traditional fireplace or a modern one, MI-Flex terminals offer a seamless solution to your venting needs. Installation is straightforward, and their design ensures minimal maintenance requirements, making them a practical choice for homeowners in the UK.
Why Buy Terminals Products
MI-Flex 125MM (5 INCH) Terminals are essential components for any fireplace setup. These terminals help to ensure proper ventilation, preventing the buildup of dangerous gases like carbon monoxide. By using MI-Flex terminals, you can enjoy a more efficient and safer fireplace experience. Additionally, these terminals are versatile and can be integrated into various flue systems, making them a popular choice for both residential and commercial fireplace installations in the UK.

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Our Terminals 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 when you buy Terminals 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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