MI-FLEX Adaptor - Ø 100
In Stock
This 0.6mm 316 stainless steel adaptor is designed to serve as a robust transitional joint between a rigid single wall flue system and MI-FLEX flexible flue liners of the same diameter. Ideal for forming a complete and compliant chimney system, this adaptor facilitates a safe and efficient connection for your heating appliance.
£20.99 incl VAT
- Description
- Product Details
The MI-FLEX Adaptor Ø 100 is expertly crafted from 0.6mm 316 stainless steel, designed to connect rigid single wall flue systems to MI-FLEX flexible flue liners of the same diameter. This highly durable adaptor is a key component in forming a complete chimney system when used with MI-FLEX 316 or 904 flexible flue liners. Compliant with Building Regulations Document J, it ensures a gas-tight seal when properly installed within a masonry chimney. It supports appliances operating up to 600°C (T600 designation) and is suitable for wood with less than 20% moisture, smokeless coal, gas, and oil. The transition joint created by this adaptor must be securely fixed using fire cement, ceramic rope, or high-temperature sealant to ensure safety and efficiency. Regular maintenance, including annual sweeping by a competent person, is essential for optimal performance and longevity.
- SKU: 20-100-MA
- Item: MI-FLEX Adaptor - u00d8 100
- Designation:: BSEN 1856-2 T600 N1 W V2 L50012 G
- System:: MI-FLEX Accessories MF20
- Material:: 316L
- Colour Finish:: Natural / Stainless Steel
- Fuels:: Wood, Oil, Gas, Smokeless coal
- Approvals:: HETAS / CE
What is it for?
The MI-FLEX Adaptor Ø 100 is designed to create a secure and seamless connection between a rigid single wall flue system and MI-FLEX flexible flue liners, ensuring compliance with Building Regulations and optimal chimney performance.
Brand Summary
National Flues is a trusted supplier of fireplaces and flues across the UK, catering to both retail and trade customers with competitive pricing and reliable delivery services.
National Flues Verdict
The MI-FLEX Adaptor Ø 100 is an outstanding choice for creating a seamless connection in your chimney system. With high durability and compatibility, it's ideal for both retail and trade customers. National Flues ensures reliable delivery nationwide.
9.6/10

