Aluminum Flexible Composite Air Duct

Aluminium Flexible Composite Air Duct — Stretchable Round Ducting for Fresh Air and Exhaust

A flexible round air duct built from aluminium foil composite film reinforced with a high-tensile steel wire spiral. It arrives compressed and stretches to length on site, which makes it ideal for the awkward final connections behind a diffuser or between a plenum box and a duct run. Light, easy to cut, and it bends through tight radiuses without fittings.

Key Features

• Semi-rigid steel wire support — holds shape under suction and resists collapse
• Extendable — stretches to length on site and compresses for storage
• Lightweight — easy to cut and route by hand
• Aluminium foil composite film — smooth inner surface for low friction loss
• Wide size range — from Ø75 mm up to Ø250 mm and beyond

Technical Specifications

Typical Applications

• Final connections between plenum boxes or duct runs and air terminals
• Exhaust ducting for bathroom and kitchen extract systems
• Flexible transitions in retrofit projects with difficult geometry

System Matching

Clamp it onto fittings with our stainless steel hose clamps. For noise-sensitive end connections use the acoustic flexible transition connector; for insulated runs choose the insulated flexible duct.

FAQ

Q: Can it be used outdoors?
A: It is intended for indoor use. Exposed outdoor runs should be protected in a duct or casing.

Q: How is it fixed to ducts?
A: It slides over the spigot and is secured with a hose clamp — no glue or special tool required.

Q: Are insulated versions available?
A: Yes, see our insulated flexible duct range for anti-condensation applications.