NilfiskCFM Grill and Depressor Hose. This helps to equalise pressure difference on dustbags when using the plastic dust sacks on hazardous and nuisance dust applications, and wherever the dust has to be retained in sacks for better housekeeping.

It goes between the bottom and the top hence the inside and outside of the bag, so there is no pressure difference.

At the moment, standard postage is capped at a maximum of $25 within Australia, so maximise the saving on postage and buy something in the related parts below!