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Essential Guide to 150MM (6 INCH) Fireplace Flues & Fixings | National Flues

Explore our range of 150MM (6 INCH) fireplace flues and fixings designed for optimal performance and safety. Whether you need clamp plates, adaptors, or hanging cowls, we have you covered. At National Flues, we prioritize quality and durability to meet your fireplace needs.
Explore our range of 150MM (6 INCH) fireplace flues and fixings designed for optimal performance and safety. Whether you need clamp plates, adaptors, or hanging cowls, we have you covered. At National Flues, we prioritize quality and durability to meet your fireplace needs.


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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.

£4.99 £56.99
Showing 14 of 14 items
Nose Cone - Ø 150

Nose Cone - Ø 150

20-150-NC
£6.99 (including VAT)
In stock
Triplelock - Flue Adaptor - Ø 150

Triplelock - Flue Adaptor - Ø 150

34-150-A
£15.99 (including VAT)
In stock
Triplelock - Adaptor, Screw-Fix - Ø 150

Triplelock - Adaptor, Screw-Fix - Ø 150

34-150-ASF
£16.99 (including VAT)
In stock
Triplelock - GC1 Gas Terminal - Ø 150

Triplelock - GC1 Gas Terminal - Ø 150

34-150-C
£9.99 (including VAT)
In stock
Triplelock - Oil Cowl, Chinamans Hat - Ø 150

Triplelock - Oil Cowl, Chinamans Hat - Ø 150

34-150-O
£40.99 (including VAT)
In stock
Triplelock - Clamp Plate (2 pc.) - Ø 150

Triplelock - Clamp Plate (2 pc.) - Ø 150

34-150-P
£4.99 (including VAT)
In stock
Triplelock - Installer Pack B (Clamp, GC1) - Ø 150

Triplelock - Installer Pack B (Clamp, GC1) - Ø 150

34-150-PB
£13.99 (including VAT)
In stock
Triplelock - Installer Pack C (Clamp, GC1, Nose Cone) - Ø 150

Triplelock - Installer Pack C (Clamp, GC1, Nose Cone) - Ø 150

34-150-PC
£17.99 (including VAT)
In stock
Triplelock - Pot Hanging Cowl, Stainless Steel - Ø 150

Triplelock - Pot Hanging Cowl, Stainless Steel - Ø 150

34-150-PHCM
£35.99 (including VAT)
In stock
Triplelock - Pot Hanging Cowl, Terracotta - Ø 150

Triplelock - Pot Hanging Cowl, Terracotta - Ø 150

34-150-PHCMT
£43.99 (including VAT)
In stock
Debris Collar with Jubilee Connector 150mm

Debris Collar with Jubilee Connector 150mm

94-COLLAR-J-150
£15.99 (including VAT)
In stock
Register Plate (F) - 900x495, no access hole - Ø 125 & 150

Register Plate (F) - 900x495, no access hole - Ø 125 & 150

94-REG-F
£30.99 (including VAT)
In stock
Register Plate (G) - 900x495, 2 access hole - Ø 125 & 150

Register Plate (G) - 900x495, 2 access hole - Ø 125 & 150

94-REG-G
£56.99 (including VAT)
In stock
Register Plate (H) - 900x600, no access holes

Register Plate (H) - 900x600, no access holes

94-REG-H
£51.99 (including VAT)
In stock
Your 150MM (6 INCH) Questions Answered

What are the benefits of using 150MM (6 INCH) fireplace flues? -

150MM (6 INCH) flues improve airflow, enhance efficiency, and reduce the risk of chimney fires.

Are the 150MM (6 INCH) fixings easy to install? +

Can I use 150MM (6 INCH) products with different fireplace types? +

Do your 150MM (6 INCH) flues comply with safety regulations? +

How do I maintain 150MM (6 INCH) flues for longevity? +

Are the 150MM (6 INCH) fixings rust-resistant? +

Can I get customized 150MM (6 INCH) solutions? +

Are the 150MM (6 INCH) products environmentally friendly? +

Upgrade your fireplace with our premium 150MM (6 INCH) flue solutions. Our Triplelock range includes clamp plates, flue adaptors, pot hanging cowls, and more, all crafted for easy installation and long-lasting performance. Trust National Flues for high-quality products that enhance both safety and efficiency. With our expertly engineered fixings, you can enjoy a cozy and secure fireplace experience all year round.
Why Buy 150MM (6 INCH) Products
The 150MM (6 INCH) fireplace flues and fixings are ideal for both residential and commercial setups. These components ensure proper ventilation, prevent smoke buildup, and maximize the heat output of your fireplace. Our products are suitable for a wide range of applications, including traditional fireplaces, wood burners, and stoves, providing a versatile solution for all heating needs.

Trusted By Trade Professionals

Our 150MM (6 INCH) 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 150MM (6 INCH) from National Flues. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.