Wall Sleeve 45° Adjustable - Ø 175
At a Glance
- 304-grade stainless steel outer layer and 316-grade stainless steel inner layer (0.40mm thick)
- 45° adjustable design for a secure and custom fit
- Robust compressed rockwool insulation (200kg/m³ for TWPro; 128kg/m³ for others)
- HETAS Approved and CE marked for safety and compliance
- Locking Band installation ensures firm and reliable attachment
- Versatile use with wood, oil, gas, and coal fuel systems

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 Wall Sleeve 45° Adjustable - Ø 175 is specifically designed to protect your chimney flue system when passing through exterior walls. Ideal for solid fuel, gas coal effect fires, oil, and gas boilers, this wall sleeve ensures safety and durability. Constructed with a 304-grade stainless steel outer layer and a 316-grade stainless steel inner layer, both with a thickness of 0.4mm, it offers robust protection.
The insulation is made from compressed rockwool, providing a density of 200kg/m3 for TWPro and 128kg/m3 for other elements. Fully welded for maximum strength, this wall sleeve meets stringent standards and is HETAS Approved and CE marked. Installation is straightforward with a Locking Band and requires a safe clearance distance from any combustible materials.
SKU: 15-175-100
Technical Specifications | |
---|---|
Outer Material | 304 Stainless Steel |
Inner Material | 316 Stainless Steel |
Material Thickness | 0.40mm |
Insulation | Compressed Rockwool (200kg/mu00b3 for TWPro, 128kg/mu00b3 for others) |
Adjustability | 45u00b0 adjustable |
Approval | HETAS / CE |
Clearance To Combustibles | 50mm (TWPro) / 60mm (KC) |
Diameter | 175mm |
Suitable For | Solid fuel, gas coal effect fires, oil and gas boilers |
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.
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National Flues Ltd Verdict
The Wall Sleeve 45° Adjustable - Ø 175 is an essential component for any chimney flue system. Designed with high-quality materials and ultimate functionality, it stands out in the market. National Flues offers reliable delivery nationwide, serving both retail and trade customers efficiently.
The Wall Sleeve 45° Adjustable - Ø 175 is used to protect the chimney in the wall passage when the flue system passes through an exterior wall.
National Flues is a leading supplier of fireplaces and flues in the UK, known for their unbeatable prices and reliable nationwide delivery. They cater to both retail and trade customers, offering secure online payments and trade accounts.
