Increaser 2 diameters - Ø 500
At a Glance
- High-grade 316L stainless steel construction
- CE marked and compliant with EN 1856-1 standards
- Versatile for both high and low temperature flue applications
- Modular design with push-fit jointing system
- Secure installation with locking band and high-pressure gaskets
- Ensures safe 50mm clearance from combustible materials

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 Increaser 2 diameters - Ø 500 is an essential part of the SWPro single wall flue system. Constructed with high-grade 316L stainless steel, this increaser is designed to boost the diameter of your existing flue setup. Suitable for various uses including boilers, ovens, and ventilation systems, it's perfect for both high and low-temperature applications.
The SWPro system is CE marked and complies with EN 1856-1 standards, ensuring top-notch safety and efficiency. The modular design, featuring a push-fit jointing system, makes for swift and secure installation, aided by a locking band and high-pressure gaskets where needed. Remember to maintain a safe 50mm clearance from the flue exterior to any combustible material.
SKU: 3-500-102
Technical Specifications | |
---|---|
Dimensions | u00d8 500 |
Material | 316L Stainless Steel |
Standards | EN 1856-1 |
Certification | CE Marked |
Applications | Boilers, Ovens, Ventilation Systems |
Installation | Push-fit jointing with locking band and high-pressure gaskets |
Clearance | Minimum 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
At National Flues, we highly recommend the Increaser 2 Diameters - Ø 500 for its robust construction and versatile application. Perfect for trade and retail customers alike, we ensure reliable delivery across the UK.
The Increaser 2 Diameters - Ø 500 is used to expand the diameter of an existing flue system, ensuring compatibility and optimal function in various applications like boilers and ventilation systems.
National Flues is a leading supplier of fireplaces and flues across the UK, known for unbeatable prices and reliable delivery. Catering to both retail and trade, we offer secure online payments and trade accounts.
