How Aluminium Flexi-Ducting works:
Aluminium Flexi-Ducting is a strong spiral wound wire covered by strong but flexible aluminium. Aluminium flexi-ducting is generally used to carry air from your extractor fan/filter to an outlet nearby. It can also be used to carry fresh air into your grow-space from an inlet. The flexi-ducting can easily be shaped around corners and will concertina down to a very short length if needed. The aluminium is fairly tough unless pierced by a sharp object and the wire spiral maintains the circular cross-sectional area throughout it’s length so that air-flow is not restricted by sagging.
How to use Aluminium Flexi-Ducting
Aluminium Flexi-ducting fits directly over the flange of your extractor fan or filter and an appropriately sized duct clip is usually used to hold it tightly in place. The Flexi-Ducting can then be run to your air outlet/inlet. Although Aluminium Flexi-Ducting works fine when run loose, the noise from air-flow through the ducting will be greatly reduced if it is stretched out as much as possible. To reduce Aluminium Flexi-ducting down to the correct length, use a sharp pair of scissors to cut the aluminium and a pair of sharp wire cutters to snip the spiral wire in the appropriate place.