Boiler adaptor - Ø 300
At a Glance
- Premium 316L stainless steel construction
- CE-marked to EN 1856-1 standards
- Push-fit jointing system with Locking Band for secure installation
- Versatile design for boilers, ovens, and ventilation systems
- Suitable for both high and low temperature, condensing and non-condensing applications
- Designed to accommodate flue diameters from Ø80 to Ø400

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 Boiler Adaptor Ø 300 is a vital component in the SWPro modular single wall flue system. Made from premium 316L grade stainless steel, this adaptor ensures a secure connection between your appliance and the flue system. Engineered for various applications, including boilers, ovens, and ventilation systems, the adaptor boasts high-pressure sealing gaskets (P1/H1) suitable for both high and low temperatures as well as non-condensing and condensing applications.
The SWPro system is versatile, featuring thickness variations to match flue diameters, and is CE marked (EN 1856-1). Installation is a breeze with its push-fit jointing system and Locking Band security. Ensure a 50mm distance from any combustible materials and use silicone sealant when connecting to condensing appliances unless the appliance already has an integrated seal.
SKU: 3-300-BA-248
Technical Specifications | |
---|---|
SKU | 3-300-BA-248 |
Material | 316L Stainless Steel |
CE Marking | Yes (EN 1856-1) |
System | SWPro Modular Flue |
Compatible Flue Diameters | u00d880 to u00d8400 |
Sealing Type | High-Pressure Sealing Gaskets (P1/H1) |
Installation Mechanism | Push-Fit Jointing with Locking Band |
Warranty | 10 Years |
Distance To Combustibles | 50mm |
Temperature Suitability | High & Low (Condensing and Non-Condensing) |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 25th. If you need faster stove or fireplace delivery please give us a call. We can often 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. If you find it cheaper within 48 hours, we'll refund the difference.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The Boiler Adaptor Ø 300 is a top-notch product, ideal for connecting SWPro to your appliance securely. With our reliable nationwide delivery and competitive prices, National Flues is your go-to supplier for all things flue-related, whether you're a retail or trade customer.
The Boiler Adaptor Ø 300 is used to connect the SWPro modular flue system to various appliances, ensuring a secure and efficient transfer of flue gases.
National Flues is a leading supplier of fireplaces and flues in the UK, providing high-quality products with reliable deliveries and competitive prices. Serving both retail and trade customers nationwide, National Flues is a trusted name in the industry.
