Increasing Register Plate Adaptor - Ø 125-Ø 150 (20-125-RPAI)
At a Glance
- Increases flue diameter by 25mm for enhanced chimney performance
Compatible with MI-FLEX 316 and 904 flexible flue liners
Constructed from robust 316L stainless steel
Suitable for wood, oil, gas, and smokeless coal applications
Compliant with Building Regulations Document J and CE/HETAS standards
Ensures a seamless, secure fit below the register plate
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. 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.
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 Increasing Register Plate Adaptor (Ø 125-Ø 150) is a crucial component designed for use with MI-FLEX 316 and 904 flexible flue liners. When paired with these liners, it creates a full-system chimney, complying with Building Regulations Document J. This adaptor ensures a seamless transition within your chimney, as it increases the flue diameter by 25mm.
Crafted for use with appliances up to 600°C (T600 designation), it is suitable for wood (with less than 20% moisture), smokeless coal, gas, and oil. The adaptor is fitted below the register plate, featuring a long tail single wall connection that integrates seamlessly with the connecting pipe. Easily secure it with fire cement, ceramic rope, or high-temperature sealant for a gas-tight seal.
For best practices, ensure regular maintenance and cleaning by a HETAS registered sweep.
SKU: 20-125-RPAI
| Technical Specifications | |
|---|---|
| Model | 20-125-RPAI |
| Compatible Flue Diameter | u00d8 125 to u00d8 150 |
| Material | 316L Stainless Steel |
| Maximum Temperature | 600u00b0C |
| Designation | BSEN 1856-2 T600 N1 W V2 L50012 G |
| Fuel Compatibility | Wood (<20% moisture), Smokeless Coal, Gas, Oil |
| Approvals | CE / HETAS |
| System | MI-FLEX Accessories MF20 0.6mm 316 S/S |
