Triplelock 80m Dia x 44m Z PACK (Liner ONLY)
At a Glance
- Durable 316L grade stainless steel construction
- 0.10mm thickness for reliable performance
- Advanced TRIPLELOCK seal with five convolutions
- Certified to BS EN 1856-2, Kitemarked and CE approved
- Compatible with gas and oil appliances, designed for high temperatures up to 260°C

We Won't Be Beaten On Price
At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:
- Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
Have Questions?
Phone: 01670 206999
Email: [email protected]
- Info
- Specs
- Install
- FAQs
The Triplelock 80mm Diameter x 44m Z Pack is a top-notch single skin flexible flue liner, perfect for relining within masonry chimneys. This liner is constructed from durable 316L grade stainless steel and boasts a thickness of 0.10mm, ensuring longevity and reliability. With five convolutions between each seam and a TRIPLELOCK seal, this flue liner guarantees superior performance.
Ideal for use with gas appliances (as per the fire manufacturer's specifications) and oil appliances up to 28 seconds, this flue liner can handle temperatures up to 260°C. Kitemarked to BS 715 and tested to BS EN 1856:2 standards, the Triplelock flue liner meets rigorous quality and safety criteria. Ensure a secure and efficient installation by following our step-by-step guide.
SKU: 4Z-80-44
Technical Specifications | |
---|---|
SKU | 4Z-80-44 |
Diameter | 80mm |
Length | 44m |
Material | 316L grade stainless steel |
Thickness | 0.10mm |
Joint Method | TRIPLELOCK Seal |
Designations | EN1856-2 T250 N1 D V3 L50010 G |
Kitemarked | Yes |
CE Approved | Yes |
Warranty | 10 Year Conditional Warranty |
Maximum Temperature | 260u00b0C |
Appliance Compatibility | Gas (as per manufacturer specifications), Oil up to 28 seconds |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.
Warranty & Returns +
All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.
National Flues Ltd Verdict
At National Flues, we take pride in offering the Triplelock 80mm Diameter x 44m Z Pack. This reliable flue liner is perfect for both gas and oil appliances, up to 260°C. Enjoy our unbeatable prices, prompt nationwide delivery, and dedicated service for both retail and trade customers.
The Triplelock 80mm Dia x 44m Z Pack is designed for relining masonry chimneys, making it suitable for gas and oil appliances, ensuring safe and efficient flue gas venting.
National Flues is a premier supplier of fireplaces and flues across the UK, known for unbeatable prices, reliable delivery, and exceptional service for both retail and trade customers. Secure online payments are available for retail purchases.
