Non-concentric increaser - Ø 200
At a Glance
- Premium 316L stainless steel construction
- Modular design for flexible flue diameter transitions
- Secure push-fit jointing system with Locking Bands
- High-pressure sealing gaskets (P1/H1) for leak-proof performance
- CE marked and compliant with EN 1856-1 standards
- Suitable for both high and low temperature applications
- Minimises condensate pooling in inclined flue runs

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 Non-concentric increaser - Ø 200 by SWPro is an exceptional modular flue system component made of 316L grade stainless steel. This versatile and robust increaser is designed to easily adapt your flue system to different diameters, primarily in inclined runs, eliminating the risk of condensate pooling. It features a high-pressure sealing gasket P1/H1, making it ideal for both high and low temperature applications, including non-condensing and condensing environments.
The SWPro system is CE marked and conforms to EN 1856-1 standards, ensuring high safety and reliability. Perfect for use in boilers, ovens, ventilation systems, and as a chimney shaft liner, it comes with a secure push-fit jointing system and Locking Bands.
SKU: 3-200-004
Technical Specifications | |
---|---|
Material | 316L Stainless Steel |
System | SWPro Modular Flue System |
Standards | EN 1856-1, CE Marked |
Operating Temperatures | Suitable for both high and low temperatures |
Diameter Transition | Designed for u00d8 200; compatible with transitions from u00d880 up to u00d8200 (and u00d8250 up to u00d8400 in extended setups) |
Sealing | High-pressure sealing gasket (P1/H1) at every joint |
Jointing System | Secure push-fit mechanism with Locking Bands |
Fuel Compatibility | Gas, Oil |
Combustibles Clearance | Minimum 50mm distance |
Warranty | 10 Years |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 29th. 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.
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National Flues Ltd Verdict
The Non-Concentric Increaser - Ø 200 is an essential component for any commercial or domestic flue system. Made from high-grade 316L stainless steel, this increaser ensures safety, reliability, and efficiency. National Flues is proud to deliver this top-notch product nationwide, offering unbeatable prices and secure online payments for both retail and trade customers.
The Non-Concentric Increaser is used to transition between different flue system diameters, particularly in inclined runs, ensuring smooth operation and preventing condensate pooling.
National Flues is a leading supplier of fireplaces and flues across the UK. Known for being rarely beaten on price and reliable delivery, National Flues supports both retail and trade customers with secure online payments and special trade accounts.
