TWPro MB - Tee Cap - Ø 125
At a Glance
- - Superior 0.4mm thick dual stainless steel construction
- - Dual-layer design: 316L inner and 304 outer with high-temperature black coating
- - HETAS approved and CE marked for guaranteed compliance
- - Suitable for solid fuel, gas, and oil appliances
- - Insulated with compressed rockwool for optimal thermal performance
- - Easy installation with a supplied locking band
- - Meets stringent EN1856-1 designations for quality and safety

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 TWPro MB Tee Cap - Ø 125mm is the perfect accessory for capping off the bottom or unused end of your 90/135 Tee. Specifically designed for use with solid fuel, gas, and oil appliances, including wood stoves, gas coal effect fires, oil boilers, and gas boilers, this versatile component ensures safe and efficient operation. Constructed with a robust outer skin made from 0.4mm thick 304-grade stainless steel, it is coated with a high-temperature black finish for added durability.
The inner skin is crafted from 0.4mm thick 316-grade stainless steel. Insulated with compressed rockwool achieving a density of 200kg/m³, every part is fully welded to deliver top-notch performance. Compliance is assured with HETAS approval and CE markings, boasting designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.
Installation is straightforward with the supplied locking band, ensuring a secure fit. Maintain a safe 50mm distance from any combustible materials like wood or plasterboard to ensure optimal safety.
SKU: 37-125-036
Technical Specifications | |
---|---|
Model | TWPro MB Tee Cap - u00d8 125mm |
Inner Material | 316L Stainless Steel (0.40mm) |
Outer Material | 304 Stainless Steel (0.40mm, High Temperature Black Coated) |
Insulation | Compressed Rockwool (200kg/mu00b3) |
Approvals | HETAS, CE |
Designations | EN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 P1 W V2 L50040 O20 |
Installation | Supplied locking band |
Combustible Distance | 50mm |
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.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The TWPro MB Tee Cap - Ø 125mm is a top-tier choice for capping off the bottom or unused end of your chimney flue tee. Offering excellent quality, reliable performance, and compliance with industry standards, it's a must-have for both retail and trade customers. Shop with National Flues for unbeatable prices and reliable nationwide delivery.
The TWPro MB Tee Cap - Ø 125mm is used to cap off the bottom or unused end of a 90/135 Tee, ensuring safe and efficient operation of your chimney flue system.
National Flues is a reputable supplier of high-quality fireplaces and flues to retail and trade customers across the UK. Renowned for competitive pricing and reliable delivery, National Flues ensures secure online payments for retail customers and offers trade accounts for professional clients.
