Designed to be used with any 2-1/2" diameter shop-vac hose, the Mini Dust Collection Seperator fits over a standard five-gallon bucket to convert a shop-vac into a two-stage dust collection system. The Mini Dust Collection Separator increases the capacity and efficiency of the typical shop-vac by allowing heavier particles to drop out of the system before they reach the main container. Finer particles can also be trapped by adding a small amount of water to the bottom of the bucket. Clean-ups are easy because the Mini Dust Collection Separator just lifts off the bucket. The Mini Dust Collection Separator makes shop clean-up a breeze!