Tee 90° reduced connection Ø 125 - Ø 350 (3-350-R90-125)
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    Fast deliveryWednesday, November 5th*
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    Price matchWe’ll match like-for-like
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                Delivery Information* +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, November 5th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.
About National Flues Ltd +
We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.
At a Glance
- Made from high-grade 316L stainless steel
 - Modular push-fit jointing system with locking band
 - Complies with EN 1856-1 and CE marked
 - Suitable for non-condensing applications in boilers, ovens, and ventilation systems
 - Versatile diameters from Ø125 to Ø350
 
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: sales@nationalflues.com
                    
- Details
 - Specs
 - Install
 - FAQs
 
Introducing the Tee 90° reduced connection Ø 125 - Ø 350, an essential component of the SWPro modular single wall flue system. Crafted from superior 316L grade stainless steel, this product excels in both high and low temperature environments, catering to non-condensing and condensing applications. Suitable for use in various systems including boilers, ovens, and ventilation setups, this flue component also serves adeptly as a chimney shaft liner.Constructed with meticulous quality, the SWPro system features high-pressure sealing gaskets (P1/H1) and modular assemblies.
With multiple diameter options ranging from Ø 125 to Ø 350, you can find the perfect fit for your project needs. Complying with the stringent EN 1856-1 standards, it is both CE marked and reliably safe for combustible materials when installed with a 50mm clearance. Featuring an easy push-fit jointing system secured with a locking band, this product ensures a secure and straightforward installation process.
SKU: 3-350-R90-125
| Technical Specifications | |
|---|---|
| Material | 316L Stainless Steel | 
| Suitable For | Non-condensing applications (boilers, ovens, ventilation, chimney shaft liners) | 
| Joint Type | Modular push-fit joint with locking band | 
| Diameter Range | Ø125 to Ø350 | 
| Compliance | EN 1856-1, CE Marked | 
| Clearance | 50mm from combustible materials | 
| Warranty | 10 Years | 
| Fuels | Gas, Oil | 
What our experts say!
"At National Flues, we are proud to offer the Tee 90° Reduced Connection Ø 125 - Ø 350, a top-tier product for your flue system needs. With reliable delivery nationwide and competitive prices for both retail and trade customers, it’s a choice you can trust."
The Tee 90° Reduced Connection Ø 125 - Ø 350 is used in cascade header systems within the SWPro flue setup, ensuring optimal performance in non-condensing applications.
National Flues is a leading supplier of fireplaces and flues throughout the UK, catering to both retail and trade customers. Renowned for competitive pricing and reliable delivery, we provide top-quality products and services you can trust.