Non-concentric increaser 2 diameters - Ø 125 (3-125-104)
At a Glance
- 316L stainless steel construction for superior durability
Designed for flue systems with inclined runs to prevent condensate pooling
Features a modular, push-fit jointing system with a secure Locking Band
CE marked and compliant with EN 1856-1 standards ensuring high safety levels
High pressure sealing gaskets rated P1/H1 for efficient leak prevention
Suitable for both commercial and residential applications
Optional accessories available such as extra locking bands, jointing gaskets and insulation kits to further optimise your system
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, June 20th. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. 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, on a retail basis. Give us a call if you find it cheaper and want to buy from us.
Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.
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 Non-concentric increaser 2 diameters - Ø 125 from the SWPro range by National Flues is an exceptional addition to any flue system. It's designed for both commercial and residential use and crafted from 316L grade stainless steel, ensuring durability and reliability. The SWPro system is versatile, supporting high and low temperatures, as well as non-condensing and condensing applications.
With its high-pressure sealing gaskets rated P1/H1, it efficiently prevents leaks, making it suitable for boilers, ovens, ventilation systems, and chimney shaft liners. This increaser is CE marked and adheres to EN 1856-1 standards, guaranteeing safety and quality. The modular flue system features a push-fit jointing system for easy installation, secured with a Locking Band.
For safety, ensure a 50mm clearance from any combustible materials.
SKU: 3-125-104
| Technical Specifications | |
|---|---|
| SKU | 3-125-104 |
| Model | Non-Concentric Increaser 2 Diameters - u00d8 125 |
| Material | 316L Stainless Steel |
| Certification | CE, EN 1856-1 |
| Gasket Rating | P1 / H1 |
| Clearance | 50mm from combustibles |
| System | SWPro |
| Temperature Range | High & Low, Non-Condensing & Condensing |
| Applications | Boilers, Ovens, Ventilation, Chimney Shaft Liners |
