No 9 Silicone Mi-Flash 304-457mm (10 to 18 inch) - High Temp.
At a Glance
- - Premium high-temperature silicone construction
- - Exceptional resistance to ozone and UV radiation
- - Quick 5-minute installation process
- - Versatile design fitting various roof pitches and panel configurations
- - Ideal for both commercial and domestic applications

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 No. 9 Silicone Mi-Flash 304-457mm (10 to 18 inch) High Temp is crafted from premium silicone designed to offer maximum resistance against weathering from ozone and ultraviolet light. This one-piece flashing ensures rapid, hassle-free on-site installation, typically completed within just five minutes. The versatile base design guarantees a robust seal across a variety of roof pitches and panel configurations, regardless of pipe location.
Installation is straightforward: just trim the pipe opening, slide the flashing over the pipe (lubrication might be necessary), form it to match the roof profile, apply the sealant from the Fixing Kit, and secure it using the included screws and caps. Note that three Standard Fixing Kits are required for proper installation. This highly durable flash is the ideal solution for ensuring a reliable seal around piping for both commercial and domestic setups.
SKU: 12-9HT
Technical Specifications | |
---|---|
SKU | 12-9HT |
Item | No 9 Silicone Mi-Flash 304-457mm (10 to 18 inch) - High Temp |
Base Size Dia | 630 x 630mm |
Pipe External | 304 x 457mm |
Roof Pitch | 0-45u00b0 |
Temperature Range | 225u00b0C Continuous - 260u00b0C Intermittent |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. 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
The No. 9 Silicone Mi-Flash is a high-quality, essential product for any fireplace or flue installation, providing extraordinary resistance to harsh weather conditions. Our customers love its durability and ease of installation. With Nationwide delivery and competitive prices, National Flues remains your trusted supplier for both retail and trade customers.
The No. 9 Silicone Mi-Flash is used to create a weather-resistant seal around piping where it passes through roofing materials, ensuring durability and protection against the elements.
National Flues is a reliable supplier of fireplaces and flues, offering competitive prices and dependable nationwide delivery for both retail and trade customers.
