Non-concentric increaser 2 diameters - Ø 450 (3-450-104)
At a Glance
- Made from high-grade 316L stainless steel
Non-concentric design increases system diameter effectively
Specially designed for inclined flue runs to prevent condensate pooling
Push-fit joint system secured with a locking band
CE marked and compliant with EN 1856-1 standards
Suitable for both high and low temperature applications including condensing and non-condensing scenarios
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, June 18th. 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 - Ø 450 is part of the versatile SWPro range, a modular single wall flue system made from high-grade 316L stainless steel. Featuring a robust high-pressure sealing gasket (P1/H1), this universal flue system can handle both high and low temperature applications, including non-condensing and condensing scenarios. It is suitable for a wide range of exhaust systems such as boilers, ovens, ventilation systems, and chimney shaft liners.Constructed from 316L stainless steel, the SWPro system guarantees durability and reliability.
Each unit is CE marked and complies with EN 1856-1 standards, ensuring quality and safety. The system utilises a push-fit jointing mechanism secured with a locking band, and for P1 and H1 installations, jointing gaskets must be fitted on every joint. Make sure to maintain a 50mm gap from any combustible material.This increaser is especially useful for inclined runs where it prevents condensate from pooling, ensuring optimal performance and longevity of your flue system.
SKU: 3-450-104
| Technical Specifications | |
|---|---|
| SKU | 3-450-104 |
| Increaser Size | u00d8 450 |
| Material | 316L Stainless Steel |
| Standards | CE marked, EN 1856-1 compliant |
| Installation Method | Push-fit jointing with locking band |
| Combustible Clearance | 50mm minimum |
| Warranty | 10 Years |
| Price | u00a3376.57 (trade) / u00a3527.49 (retail) |
| System Compatibility | SWPro modular single wall flue system |
| Fuel Compatibility | Gas, Oil |
