Lid - Ø 800 (3-800-036)
At a Glance
- Durable 316L stainless steel construction
Complies with EN 1856-1 and CE standards
Secure push-fit jointing with Locking Band for easy installation
Designed to withstand high pressures and temperatures
Versatile application for boilers, ovens, ventilation systems, and chimney shaft liners
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, June 9th. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. 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, on a retail basis. Give us a call if you find it cheaper and want to buy from us.
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 Lid - Ø 800 is a durable cap end designed to securely close off the branch or base of a tee or the end of a header in your chimney flue system. Made from high-grade 316L stainless steel, this component is built to withstand high pressures and temperatures, making it versatile for various applications including boilers, ovens, ventilation systems, and chimney shaft liners. The SWPro system features a push-fit jointing system secured with a Locking Band for ease of installation.
This modular flue system is CE marked and adheres to EN 1856-1 standards, guaranteeing its quality and reliability. Whether dealing with positive or negative pressure, non-condensing or condensing flue gases, this product is built for performance and longevity.
SKU: 3-800-036
| Technical Specifications | |
|---|---|
| Material | 316L Stainless Steel |
| Compliance | EN 1856-1, CE Marked |
| Pressure Ratings | Supports both positive and negative pressure flue gases |
| Installation Type | Push-fit joint with Locking Band |
| Applications | Boilers, Ovens, Ventilation Systems, Chimney Shaft Liners |
| Distance To Combustibles | Minimum 50mm |
| Warranty | 10 Years |
