Increaser 3 diameters - Ø 450 (3-450-202)
At a Glance
- High-grade 316L stainless steel for superior durability
Modular design for flue diameter expansion from 100ID to 150ID
Push-fit jointing system with a secure locking band
CE marked and compliant with EN 1856-1 standards
Versatile performance for both condensing and non-condensing applications
Suitable for boilers, ovens, chimney linings, and ventilation systems
Optional accessories available such as jointing gaskets to optimise P1/H1 installations
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 Increaser 3 diameters - Ø 450 from our SWPro range is an exceptional modular flue component. Crafted from high-grade 316L stainless steel, it offers unmatched durability and performance. This increaser is designed to seamlessly expand the diameter of your flue system, making it ideal for a variety of applications including boilers, ovens, chimney linings, and ventilation systems.
The SWPro system is universally compatible with both high and low temperatures and works with condensing and non-condensing applications. With a high-pressure sealing gasket rated P1/H1, this increaser guarantees a secure and efficient fit. Additionally, it is CE marked and conforms to all relevant standards, ensuring regulatory compliance and safety in use.
The easy push-fit jointing system, secured with a locking band, ensures swift and secure installation. For systems requiring P1 and H1 installations, always fit the jointing gaskets to maintain optimal performance.
SKU: 3-450-202
| Technical Specifications | |
|---|---|
| Inner Material | 316L Stainless Steel |
| Outer Material | N/A |
| Standard | EN 1856-1 |
| Pressure Seal | P1/H1 High-pressure sealing gasket |
| Temperature Range | High and Low |
| Fuels | Gas, Oil |
| Distance To Combustibles | 50mm |
| Warranty | 10 Years |
| System | SWPro |
| Certification | CE |
