Conical Sump Adaptor (400mm sq. plate) - Ø 200
At a Glance
- - Constructed from durable 316 stainless steel for superior corrosion resistance
- - Robust 400mm x 400mm square plate ensures a secure connection
- - Downward-facing Ø 200 spigot designed for seamless fitting into single wall pipes
- - Ideal for chimney stacks with existing clay liners
- - Engineered for efficiency, reliability and long-lasting performance

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 Conical Sump Adaptor (400mm sq. plate) - Ø 200 is designed for connecting the bottom of a chimney stack that has an existing clay liner, where there is no need for additional chimney flue liners. Before installation, ensure that the existing clay liner passes a smoke test to confirm its integrity.
This high-quality adaptor is constructed from 1mm thick stainless steel grade 316, renowned for its durability and resistance to corrosion, providing long-lasting performance. The square stainless steel plate measures 400mm x 400mm and features a downward-facing spigot that fits seamlessly into single wall pipes, ensuring a secure and efficient connection.
SKU: 28-8-CSA
Technical Specifications | |
---|---|
Material | 316 Stainless Steel |
Plate Dimensions | 400mm x 400mm |
Spigot Diameter | u00d8 200mm |
Thickness | 1mm |
Suitable For | Chimney stacks with clay liners, single wall pipes |
Application | Connecting chimney stacks without the need for additional flue liners |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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
The Conical Sump Adaptor (400mm sq. plate) - Ø 200 is a reliable and essential component for chimney systems with clay liners. At National Flues, we're proud to offer this product with our usual unbeatable prices and dependable national delivery. We serve both retail and trade customers with equal dedication.
The Conical Sump Adaptor is used to create a secure connection at the bottom of a chimney stack with an existing clay liner, where no extra chimney flue liner is needed.
National Flues is a trusted supplier of fireplaces and chimney flues across the UK, known for competitive pricing, reliable delivery services, and catering to both retail and trade customers.
