Screw-FIX Register Plate Adaptor - Ø 150
At a Glance
- - Secure connection for MI-FLEX flexible liners
- - Complies with Building Regulations Document J
- - Gas-tight seal with fire cement, ceramic rope, or high-temperature sealant
- - Rated for up to 600°C (T600 designation)
- - Ideal for wood (<20% moisture), smokeless coal, gas, and oil appliances
- - Long tail single-wall connection for reliable installation
- - Designed for installation under the register plate within masonry chimneys

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 Screw-FIX Register Plate Adaptor - Ø 150 is a key installation accessory specifically designed for seamless connection with MI-FLEX 316 and 904 flexible flue liners. This fitting ensures a comprehensive chimney system when used together with other MI-FLEX products. According to Building Regulations Document J, flexible flue liners must be fully enclosed within a masonry chimney.
This adaptor ensures that installation meets safety standards while being suitable for appliances up to 600°C (T600 designation). Ideal for use with wood having less than 20% moisture, smokeless coal, gas, and oil, this adaptor secures the transition from connecting flue systems to flexible liners, ensuring a gas-tight seal with the use of fire cement, ceramic rope, or high-temperature sealant. Installed at the base of the chimney underneath the register plate, it features a long tail single-wall connection, making it a versatile and essential piece for any compliant chimney setup.
SKU: 25-150-RPA
Technical Specifications | |
---|---|
SKU | 25-150-RPA |
Diameter | 150 mm |
Material Compatibility | MI-FLEX 316 and 904 flexible liners |
Installation Location | Base of chimney below register plate |
Temperature Rating | Up to 600u00b0C (T600) |
Fuel Compatibility | Wood (<20% moisture), smokeless coal, gas, oil |
Connection Type | Long tail single-wall connection |
Compliance | Building Regulations Document J |
Stock | IN STOCK (73) |
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 Screw-FIX Register Plate Adaptor - Ø 150 is an essential component for any chimney installation using MI-FLEX flexible flue liners. National Flues offers not just competitive pricing but also reliable nationwide delivery, catering to both retail and trade customers.
The Screw-FIX Register Plate Adaptor - Ø 150 is designed to ensure a secure and compliant connection between the connecting flue system and MI-FLEX flexible flue liners in masonry chimneys.
National Flues is a leading UK supplier of fireplaces and flues, offering competitive prices, reliable delivery, and a focus on quality. Serving both retail and trade customers, National Flues guarantees secure online payments and exceptional customer service.
