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Reducer 3 diameters - Ø 300 (3-150-208)

National Flues presents the Reducer 3 diameters - Ø 300, a premium modular adaptor engineered for efficient flue system integration. This high-grade stainless steel reducer is ideal for commercial and high-performance residential applications, ensuring superior performance while meeting stringent industry standards. Enhance your installation with this versatile and reliable product designed for seamless operation across diverse settings.
£334.99
with free delivery Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

    High-grade 316L stainless steel construction
    Complies with EN1856-1 and is CE marked
    Versatile design for both condensing and non-condensing applications
    Push-fit jointing system with secure Locking Band

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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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.
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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).

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Reducer 3 diameters - Ø 300 is a top-quality modular adaptor designed to reduce the diameter within a flue system. Made from high-grade 316L stainless steel with variable thickness based on the diameter, this reducer is built to withstand diverse conditions. It includes a high-pressure sealing gasket (P1/H1) for secure fitting.

Tested to meet EN 1856-1 standards, it is CE marked for added assurance. This versatile reducer is suited for both high and low-temperature settings, covering non-condensing and condensing applications in both positive and negative pressure systems. Ideal for use with boilers, ovens, ventilation systems, and even chimney shaft liners, its push-fit jointing system and secure Locking Band make installation straightforward and reliable.

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

SKU: 3-150-208

Technical Specifications
Material Inner316L Stainless Steel
SystemSWPro
Diameter Rangeu00d8 80 up to u00d8 200 and u00d8 250 up to u00d8 400
StandardEN 1856-1
Gasket TypeP1/H1
Warranty10 Years
Combustible Distance50mm
ApplicationsBoilers, ovens, ventilation systems, chimney shaft liners
CertificationCE
Ensure proper push-fit assembly using the provided Locking Band and high-pressure sealing gasket (P1/H1). It is crucial to maintain a clearance of 50mm from any combustible materials such as wood or plasterboard. For installations in P1/H1 configurations, fit jointing gaskets at every connection to ensure a secure and leak-free join. Adhere strictly to manufacturer guidelines during assembly to maintain both system integrity and compliance with safety regulations.

The reducer is constructed from high-grade 316L stainless steel, ensuring durability and longevity.

Yes, this product is CE marked and meets EN 1856-1 standards for quality and safety.

This reducer is versatile and can be used in boilers, ovens, ventilation systems, and as a chimney shaft liner for both high and low-temperature applications.

The reducer is installed using a push-fit jointing system secured with a Locking Band. In P1 and H1 installations, jointing gaskets must be fitted at every joint.

Yes, the Reducer 3 Diameters - Ø 300 is designed for use in both positive and negative pressure systems, making it incredibly versatile.

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

Yes, the reducer is engineered for both condensing and non-condensing applications, making it highly adaptable.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, May 15th. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call. If you need faster stove or fireplace delivery please also 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. Mi-Flex offers a lifetime guarantee. 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.

Read our review in our Reducer 3 diameters - Ø 300 buyers guide

Invest in reliability and secure a high-performing flue system — order now!

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