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Inspection Tee - Ø 400 (3-400-135)

National Flues presents the Inspection Tee - Ø 400, a premium stainless steel flue component engineered for durability and safety. This high-quality inspection tee is designed for both residential and commercial flue systems, offering reliable performance in various temperature conditions. Ideal for chimney, duct, and flue inspection, it is a must-have in the modular single wall flue system setup.
The price you pay today £599.99
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

    Constructed from high-grade 316L stainless steel
    CE marked and compliant with EN 1856-1 standards
    Optimised for both high and low temperature applications
    Secure push-fit jointing system with a Locking Band
    Versatile design suitable for residential and commercial use
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 Inspection Tee - Ø 400 is a vital component of the SWPro modular single wall flue system. Constructed from high-grade 316L stainless steel, it is designed to meet the highest standards of quality and durability. The SWPro system achieves optimal performance in a variety of applications, including boilers, ovens, ventilation systems, and chimney shaft liners.

This Inspection Tee is CE marked and complies with EN 1856-1: T200 H1 W Vm L50050 O(50) - Ø 250 up to Ø 400 standards, ensuring it meets rigorous safety and performance criteria. The push-fit jointing system, secured with a Locking Band, ensures a secure and straightforward installation. Whether dealing with positive or negative pressure, high or low temperature, non-condensing or condensing environments, the Inspection Tee - Ø 400 performs reliably, making it indispensable for both residential and commercial settings.

Remember to keep a safety distance of 50mm from any combustible materials during installation.

SKU: 3-400-135

Technical Specifications
SKU3-400-135
Product NameInspection Tee - u00d8 400
Material316L Stainless Steel
ApprovalCE
StandardEN 1856-1: T200 H1 W Vm L50050 O(50) - u00d8 250 up to u00d8 400
Warranty10 Years
FuelsGas, Oil
Distance To Combustibles50mm
SystemSWPro
InstallationPush-fit jointing with Locking Band
For safe and effective installation, always maintain a distance of at least 50mm between the flue and any combustible materials such as wood or plasterboard. The Inspection Tee - Ø 400 utilises a push-fit jointing system secured with a Locking Band. Ensure that each joint is fitted with the appropriate gaskets, particularly for P1 and H1 installations. Follow the manufacturer’s guidelines closely to achieve a secure, leak-free connection, whether dealing with positive or negative pressure scenarios. If in doubt, consult with a professional installer.

The Inspection Tee - Ø 400 is made from high-grade 316L stainless steel.

Yes, the Inspection Tee - Ø 400 is suitable for both high and low temperature applications, including non-condensing and condensing environments.

The Inspection Tee - Ø 400 is CE marked and complies with EN 1856-1: T200 H1 W Vm L50050 O(50) - Ø 250 up to Ø 400 standards.

The Inspection Tee - Ø 400 is installed using a push-fit jointing system secured by a Locking Band. Jointing gaskets must be fitted on every joint for P1 and H1 installations.

Yes, the Inspection Tee - Ø 400 is suitable for use in chimney shaft liners.

Ensure a 50mm distance from the outside of the flue to any combustible materials such as wood or plasterboard.

Yes, National Flues offers the Inspection Tee - Ø 400 to both retail and trade customers, with secure online payments and trade accounts available.

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