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Tee 90° reduced connection Ø 100 - Ø 400 (3-400-R90-100)

Discover the Tee 90° reduced connection Ø 100 - Ø 400 from National Flues—a prime component engineered for commercial and industrial flue systems. Ideal for boilers, ovens, and a broad variety of applications, this high-quality tee is synonymous with reliability and engineered precision. National Flues offers competitive prices and exceptional service for flues, piping solutions, and ventilation systems, making it a top choice for professionals across the UK.
The price you pay today £430.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.

 

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At a Glance

    Modular design compatible with cascade header systems
    Constructed of high-grade 316L stainless steel
    CE marked and compliant with EN 1856-1 standards
    Accommodates flue sizes from Ø 100 to Ø 400
    Easy push-fit jointing system secured by a locking band
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]

The Tee 90° reduced connection Ø 100 - Ø 400 is part of the versatile SWPro modular single wall flue system. Constructed from high-grade 316L stainless steel, it ensures durability and resistance to high temperatures, fitting sizes ranging from Ø 100 to Ø 400. The system is CE marked and meets stringent standards (EN 1856-1), making it suitable for a broad spectrum of applications such as boilers, ovens, and ventilation systems.

The push-fit jointing system, reinforced with a locking band, allows for easy installation. For P1 and H1 classified installations, jointing gaskets are required for every connection, maintaining a safe 50mm distance from any combustible materials.

SKU: 3-400-R90-100

Technical Specifications
Size Rangeu00d8 100 to u00d8 400
Material316L Stainless Steel
StandardsEN 1856-1, CE Marked
Jointing SystemPush-fit with locking band
Combustible Clearance50mm
Warranty10 Years
Suitable FuelsGas, Oil
Ensure that the push-fit jointing assembly is securely connected using the provided locking band. For P1 and H1 classified installations, jointing gaskets are mandatory at every connection to maintain the required 50mm clearance from combustible materials such as wood or plasterboard. It is advisable to carefully follow the installation instructions provided in the manual, and if in doubt, consult a professional installer to guarantee optimal performance and compliance with safety standards.

The 90° reduced connection tee is primarily used in cascade header systems and various commercial applications such as boilers, ovens, and ventilation systems.

The tee is made from high-grade 316L stainless steel, ensuring longevity and resistance to high temperatures.

No, the 90° reducing tee is not suitable for condensing systems.

The tee is compatible with flue sizes ranging from Ø 100 to Ø 400.

Yes, the tee is CE marked and meets the EN 1856-1 standards.

It uses a push-fit jointing system secured by a locking band. For P1 and H1 installations, jointing gaskets are needed at every connection.

A minimum distance of 50mm from any combustible materials like wood or plasterboard must be maintained.

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