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...is a 1.5-metre length of corrugated aluminium flexible duct — used for the final connection between a cooker hood outlet and a rigid ducting run, or for short sections where rigid pipe cannot be routed due to tight bends, awkward angles, or restricted access. Flexible enough to navigate spaces that rigid pipe cannot reach and compressible for easy routing, it's the practical solution for the last section of any installation where a direct rigid connection isn't possible. Ducting tape is recommended at both ends to create a fully airtight seal at every connection point.
Flexible aluminium hose is a connection tool, not a full ducting solution. It's used in three specific situations — as a final connection between the hood outlet and the start of a rigid ducting run where the hood needs a small amount of movement tolerance, as a short bridge section over a gap of up to 1.5 metres where rigid pipe cannot be fitted due to a structural obstruction, and as a transition piece between a rigid run and an external wall vent where the last section needs to flex into position. For the main body of any ducting run — the sections running along cabinet tops, through ceiling voids, or within wall chases — rigid ducting always outperforms flexible hose in extraction efficiency, noise, and long-term reliability. Use flexible hose where you need flexibility, rigid ducting everywhere else.
Unlike Luxair's rigid push fit ducting which forms an airtight seal without tape, flexible hose connections require ducting tape at both ends to achieve an airtight joint. Without tape, the corrugated hose end will not seal fully against the spigot or rigid pipe it connects to, allowing cooking air, odours, and moisture to leak into the void behind your cabinets. Wrap ducting tape firmly around the full circumference of both connection points — the end connecting to the hood outlet and the end connecting to the rigid pipe or wall vent. Don't stretch the tape as you wrap — lay it flat and overlap each pass by at least half the tape width for a reliable seal.
Every metre of flexible aluminium hose adds measurably more airflow resistance than the same length of rigid pipe — because the corrugated internal profile creates turbulence that smooth-bore rigid pipe doesn't. As a practical guide, keep any flexible hose section to 1.5 metres or less, avoid compressing it tightly around bends (a gentle curve always outperforms a sharp kink), and never fold or crush the hose at any point — a kinked section can reduce airflow by 30–40% and significantly increase motor noise. If your connection requires more than 1.5 metres of flexible hose, use rigid ducting for the main run and reserve the flexible hose for the final 0.5–1 metre connection only.
100mm (4") flexible hose matches 100mm round ducting and is suitable for cooker hood motors rated below 450 m³/hr. For higher-rated motors use the correct larger size throughout — mixing sizes with a reducer at the flexible hose connection is not recommended as it compounds the airflow restriction:
All the other components for your 100mm ducting run are available as related products at the bottom of this page — add everything to your basket in one visit without having to search for each part separately.
100mm Aluminium Flexible Ducting Hose — 1.5 Metres
Corrugated aluminium flexible duct for final connections, short bridge sections, and tight-access runs where rigid pipe cannot be fitted.
Ducting Tape Required at Both Ends
Unlike rigid push fit ducting, flexible hose connections are not self-sealing. Ducting tape must be applied at both the hood outlet and the rigid pipe or vent connection for an airtight joint.
1.5 Metre Length
Sufficient for most final connection requirements. Keep flexible sections as short as possible — under 1.5 metres — to minimise airflow resistance and motor noise.
Aluminium Construction
Corrugated aluminium profile — flexible, lightweight, and heat resistant for use in kitchen ventilation environments.
Use for Final Connections Only
Rigid ducting is recommended for all main runs. Use flexible hose only for the final connection or short bridge sections where rigid pipe cannot be routed.
Avoid Kinking or Compressing Tightly
Sharp bends or crushed sections reduce airflow by 30–40% and increase motor noise significantly. Always use gentle curves with the minimum bend radius maintained.
Suitable For Hoods Rated Below 450 m³/hr
Matches 100mm round ducting. For higher-rated motors use 125mm, 150mm, or 200mm flexible hose throughout.
Next-Day UK Delivery Available
In stock and available for express overnight delivery across the UK.
