Help & Advice: 
7" Ultraflex 316/316 Stainless Steel Flexible Flue Liner
Enhance your chimney system with our Ultraflex 316/316 Stainless Steel Flexible Flue Liner, designed to line existing brick or masonry stacks with ease. This liner is crafted from high-quality 316 grade stainless steel with a triple lock design, ensuring durability and longevity.
| Area | Delivery | Order Value | Price (ex VAT) |
|---|---|---|---|
| UK Mainland | Next Day* | Below £150 Net | £15.00 |
| UK Mainland | Next Day* | Over £150 Net | Free |
| Scottish Mainland | 1-2 Days | Below £150 Net | £15.00 |
| Scottish Mainland | 1-2 Days | Over £150 Net | Free |
*Orders must be placed by 2pm for next-day delivery. Deliveries are made Monday to Friday during regular working hours. Orders placed on weekends, public holidays, or bank holidays will be dispatched the next working day.
Pallet Delivery
Some items incur a £50.00 (ex Vat) pallet delivery charge due to their weight and size. This will be calculated at checkout. Also listed below.
| Product | Incuring Limit | Delivery |
|---|---|---|
| All Stoves | All Stoves | 2-4 days |
| 4" & 5" Flue Liner | 16 metres & Over | 48 hours |
| 6" Flue Liner | 13 metres & Over | 48 hours |
| 7" & 8" Flue Liner | 2 metres & Over | 48 hours |
| Vermiculite | 10 bags or more | 48 hours |
| Garden Stove | Per item | 48 hours |
All Pallet deliveries are curbside only. Some orders, especially those containing stoves, may arrive in multiple deliveries due to different suppliers, stock availability, and logistics.
For more information, please visit our Delivery Information page.
Internal Diameter: 180mm
External Diameter: 185mm
Various lengths of flexible liner are available (up to 30 metres).
- Made of 316 grade Stainless steel inner and 316 outer (Triple lock).
- Suitable for burning the following fuels: dried seasoned wood, gas, oil.
- This liner comes with a lifetime guarantee* (conditions apply).
- Normal operating temperature of up to 600°C for solid fuel and 250°C for Oil and Gas.
- HETAS approved product.
- Manufactured in the UK.
- Corrosion and crush resistant.
At Flue Finder, customer satisfaction is our priority. You can return unused items within 14 days of receipt, except for Stoves and cut-to-length Flue Liners (including liner kits).
If your goods are missing, defective, damaged or not as described please contact info@fluefinder.co.uk.
To initiate a return, please email us at returns@fluefinder.co.uk. We will send you a returns form and the return address.
Important: Returns must be reported in advance.
For more detailed information on the returns process and conditions, please visit our Returns Page.
*Stoves are non-returnable*
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Alex T
Just placed my first order on the new site and I’m impressed. Everything was easy to find, and the whole process from browsing to checkout was seamless. Looking forward to receiving my order!
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Julie
The new website is fantastic, much faster and more user friendly. Found exactly what I needed and got my confirmation email instantly. Great job!
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Martin
Love the layout of the new site. Everything is clearly explained, especially the technical details. Makes ordering the right parts so much easier.
