Boiler adaptor - Ø 300
At a Glance
- Constructed from high-grade 316L stainless steel
- CE marked and EN 1856-1 compliant for safety
- Suitable for both high and low temperature applications
- Versatile compatibility with boilers, ovens and ventilation systems
- Engineered for both positive and negative pressure environments
- Requires a minimum 50mm clearance from combustibles

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 designed for seamless connectivity between the SWPro modular flue system and your appliance. Crafted from high-grade 316L stainless steel, this adaptor ensures durability and efficiency. The SWPro system, noted for its versatility, handles both high and low temperatures and suits both positive and negative pressure applications.
This adaptor is perfect for various applications, including boilers, ovens, and ventilation systems, making it a highly versatile component. It's CE marked and complies with stringent EN 1856-1 standards, ensuring top-tier quality and safety. When installing, always maintain a 50mm gap from combustible materials and use silicone sealant for condensing appliances unless a seal is already in place.
SKU: 3-300-BA-353
Technical Specifications | |
---|---|
SKU | 3-300-BA-353 |
Appliance Compatibility | Boilers, ovens, ventilation systems |
Material | 316L Stainless Steel |
System | SWPro modular flue |
Safety Standards | CE Mark, EN 1856-1 |
Temperature Range | High and low temperatures |
Pressure Compatibility | Positive and negative pressure |
Minimum Clearance | 50mm from combustibles |
Warranty | 10 Years |
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 choice for reliable flue connections. At National Flues, we cater to both retail and trade customers, offering unbeatable prices and nationwide delivery.
This adaptor connects the SWPro modular flue system to various appliances, ensuring a secure and efficient connection.
National Flues is a leading supplier of fireplaces and flues in the UK. Renowned for both top-notch quality and competitive prices, they serve retail and trade customers with nationwide delivery.
