Swiftair Hydroponics Grow Room Flexible Acoustic Insulated Ducting 4" 5" 6" 5m 10m (4" 100mm 5m)

I was amused by the "don't buy 'cos it contains fibreglass" review - Of course it does, just like all the other ones I looked at. Clearly that person hasn't spent a weekend installing loft insulation :-)OK, on to MY review: The ducting came quickly and well packaged. Don't be tempted to open the plastic bag until you're ready to install. I did and the ducting quickly expanded! A perfect fit for my two ICON 30 extractors although the vent through the roof was a bit too big for the pipe... My fault entirely. I got around it by pushing the ducting inner inside the vent pipe and securing the outer to hold it in place. No obvious benefits yet but when the temperature drops, I'm hoping to not see any more condensation dripping through the roof fans.One more thing, I strongly recommend that you buy some of the 100mm stainless hose clips available here. They're SO much better than cable ties and at less than a quid each, great value.

Did the job bought for but the inner sheath was shorter than the outer. But pulled tk the right length. Would buy again inspite of this.

Exactly as shown

Easy install out side but was abit lose but worked as should

After removing some insulation to get to the internal ducting it was east to use.

Not very acousticly insulating but good value, well packed and fast delivery.

great product well made

Made my vivarium exhaust so very quiet. Going to replace the bathroom ducting with this stuff too! Made it so much quieter even with an upgraded fan!Cut it outside or something though - and wear gloves/long sleeves - the fibreglass is a b*tch.