Non-concentric increaser 2 diameters - Ø 400 (3-400-104)
At a Glance
- Crafted from high-grade 316L stainless steel for excellent durability
Versatile design for both condensing and non-condensing systems
Complies with EN 1856-1 standards and is CE marked
Suitable for high and low temperature applications
Includes high-pressure sealing gasket ensuring secure joints
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, June 27th. 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 400 is a versatile and essential element for your flue system. Crafted from 316L grade stainless steel, noted for its durability and strength, this increaser is designed with modular single wall flue systems in mind. Whether dealing with high or low temperatures, non-condensing or condensing applications, this increaser works efficiently with both negative and positive pressure systems.
Ideal for an array of applications such as boilers, ovens, and ventilation systems, it even serves as a reliable chimney shaft liner. Its high-pressure sealing gasket (P1/H1) ensures secure and safe use. The product also boasts CE marking and complies with EN 1856-1 standards, guaranteeing high quality and safety.
SKU: 3-400-104
| Technical Specifications | |
|---|---|
| SKU | 3-400-104 |
| Material | 316L Stainless Steel |
| Size | u00d8 400 |
| Certification | CE marked |
| Standard | EN 1856-1 |
| Gasket | High-pressure (P1/H1) |
| Distance To Combustibles | 50mm |
| Warranty | 10 Years |
| System | SWPro |
| Fuels | Gas, Oil |
