Adjustable base support from 50 to 80 mm - Ø 500
At a Glance
- High-grade 316L stainless steel for superior durability and corrosion resistance
- Adjustable levelling range from 50mm to 80mm for versatile installation
- Modular push-fit jointing system for quick and easy setup
- CE marked and compliant with EN 1856-1 for trusted safety standards
- Suitable for both internal and external chimney applications

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 Adjustable Base Support from 50 to 80 mm (Ø 500) by National Flues is crafted from high-grade 316L stainless steel, ensuring outstanding durability and stability. This modular single-wall flue system is designed to support vertical chimney installations, both internally and externally. With a precise levelling adjustment range of 50mm to 80mm from the wall surface, it accommodates various installation needs.
It features a high-pressure sealing gasket (P1/H1), making it suitable for high and low temperatures, as well as non-condensing and condensing applications. The SWPro system is perfect for boilers, ovens, ventilation systems, and chimney shaft liners. It's easy to install with a straightforward push-fit jointing system and securing locking bands, ensuring safety and compliance with EN 1856-1 standards.
Jointing gaskets must be fitted for P1 and H1 installations to maintain the required 50mm distance from combustible materials.
SKU: 3-500-060
Technical Specifications | |
---|---|
SKU | 3-500-060 |
Model | Adjustable base support from 50 to 80 mm - u00d8 500 |
Material | 316L Stainless Steel |
Adjustment Range | 50mm to 80mm |
Certifications | CE, EN 1856-1 |
System | SWPro |
Warranty | 10 Years |
Fuel Compatibility | Gas, Oil |
Minimum Combustible Distance | 50mm |
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.
National Flues Ltd Verdict
At National Flues, we are impressed by the Adjustable Base Support from 50 to 80 mm (Ø 500). It's robust, reliable, and easy to install. With our competitive pricing and dependable nationwide delivery, it's a top choice for both retail and trade customers.
The Adjustable Base Support is designed to provide vertical support to chimney systems, accommodating precise levelling adjustments from 50mm to 80mm. It's suitable for a variety of applications including boilers and ventilation systems.
National Flues is a trusted supplier of high-quality fireplaces and flue systems in the UK. Known for competitive pricing, reliable delivery, and excellent service to both retail and trade customers.
