Polyaire 240V Damper – 350mm

Polyaire 240V Damper – 350mm
Employs a unique design to minimise the chance of duct leaks due to faulty attachment.
The duct is attached to each spigot using special cable ties.
Each spigot has a slightly positive taper with a pronounced ridge at the edge.
This means that the cable tie will become tighter the closer it gets to the edge, minimising the chances of duct detachment.